Dicofol
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Basic Info
| Common Name | Dicofol(F03386) |
| 2D Structure | |
| Description | Dicofol is an organochlorine pesticide that is chemically related to DDT. Specifically, it is used as a miticide against the red spider mite. Though difocol is not extremely toxic, its use is controverial because one of the intermediates used in its production is DDT. It also may accumulate in the environment and its use is restricted in many areas. (L631) |
| FRCD ID | F03386 |
| CAS Number | 115-32-2 |
| PubChem CID | 8268 |
| Formula | C14H9Cl5O |
| IUPAC Name | 2,2,2-trichloro-1,1-bis(4-chlorophenyl)ethanol |
| InChI Key | UOAMTSKGCBMZTC-UHFFFAOYSA-N |
| InChI | InChI=1S/C14H9Cl5O/c15-11-5-1-9(2-6-11)13(20,14(17,18)19)10-3-7-12(16)8-4-10/h1-8,20H |
| Canonical SMILES | C1=CC(=CC=C1C(C2=CC=C(C=C2)Cl)(C(Cl)(Cl)Cl)O)Cl |
| Isomeric SMILES | C1=CC(=CC=C1C(C2=CC=C(C=C2)Cl)(C(Cl)(Cl)Cl)O)Cl |
| Synonyms |
Dichlorokelthane
Kelthane
DICOFOL
Acarin
Mitigan
115-32-2
Keltane
DTMC
2,2,2-Trichloro-1,1-bis(4-chlorophenyl)ethanol
Kelthanethanol
|
| Classifies |
Pollutant
Pesticide
|
| Update Date | Nov 13, 2018 17:07 |
Chemical Taxonomy
| Kingdom | Organic compounds |
| Superclass | Benzenoids |
| Class | Benzene and substituted derivatives |
| Subclass | Diphenylmethanes |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Diphenylmethanes |
| Alternative Parents | |
| Molecular Framework | Aromatic homomonocyclic compounds |
| Substituents | Diphenylmethane - Chlorobenzene - Halobenzene - Aryl chloride - Aryl halide - Tertiary alcohol - Halohydrin - Chlorohydrin - Organochloride - Organohalogen compound - Aromatic alcohol - Hydrocarbon derivative - Organic oxygen compound - Alkyl chloride - Alcohol - Alkyl halide - Organooxygen compound - Aromatic homomonocyclic compound |
| Description | This compound belongs to the class of organic compounds known as diphenylmethanes. These are compounds containing a diphenylmethane moiety, which consists of a methane wherein two hydrogen atoms are replaced by two phenyl groups. |
Properties
| Property Name | Property Value |
|---|---|
| Molecular Weight | 370.475 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 1 |
| Rotatable Bond Count | 2 |
| Complexity | 292 |
| Monoisotopic Mass | 367.91 |
| Exact Mass | 369.907 |
| XLogP | 4.3 |
| Formal Charge | 0 |
| Heavy Atom Count | 20 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Isotope Atom Count | 0 |
| Covalently-Bonded Unit Count | 1 |
ADMET
| Model | Result | Probability |
|---|---|---|
| Absorption | ||
| Blood-Brain Barrier | BBB+ | 0.9916 |
| Human Intestinal Absorption | HIA+ | 1.0000 |
| Caco-2 Permeability | Caco2+ | 0.8147 |
| P-glycoprotein Substrate | Non-substrate | 0.7629 |
| P-glycoprotein Inhibitor | Non-inhibitor | 0.9450 |
| Non-inhibitor | 0.9273 | |
| Renal Organic Cation Transporter | Non-inhibitor | 0.8315 |
| Distribution | ||
| Subcellular localization | Mitochondria | 0.8771 |
| Metabolism | ||
| CYP450 2C9 Substrate | Non-substrate | 0.8017 |
| CYP450 2D6 Substrate | Non-substrate | 0.8958 |
| CYP450 3A4 Substrate | Non-substrate | 0.6321 |
| CYP450 1A2 Inhibitor | Inhibitor | 0.8228 |
| CYP450 2C9 Inhibitor | Inhibitor | 0.6872 |
| CYP450 2D6 Inhibitor | Non-inhibitor | 0.8923 |
| CYP450 2C19 Inhibitor | Inhibitor | 0.8830 |
| CYP450 3A4 Inhibitor | Non-inhibitor | 0.8309 |
| CYP Inhibitory Promiscuity | High CYP Inhibitory Promiscuity | 0.5054 |
| Excretion | ||
| Toxicity | ||
| Human Ether-a-go-go-Related Gene Inhibition | Weak inhibitor | 0.8628 |
| Non-inhibitor | 0.8410 | |
| AMES Toxicity | Non AMES toxic | 0.9474 |
| Carcinogens | Non-carcinogens | 0.5446 |
| Fish Toxicity | High FHMT | 0.9153 |
| Tetrahymena Pyriformis Toxicity | High TPT | 0.9985 |
| Honey Bee Toxicity | High HBT | 0.8026 |
| Biodegradation | Not ready biodegradable | 0.9656 |
| Acute Oral Toxicity | III | 0.8068 |
| Carcinogenicity (Three-class) | Non-required | 0.6957 |
| Model | Value | Unit |
|---|---|---|
| Absorption | ||
| Aqueous solubility | -5.4283 | LogS |
| Caco-2 Permeability | 1.7684 | LogPapp, cm/s |
| Distribution | ||
| Metabolism | ||
| Excretion | ||
| Toxicity | ||
| Rat Acute Toxicity | 2.7777 | LD50, mol/kg |
| Fish Toxicity | -0.0949 | pLC50, mg/L |
| Tetrahymena Pyriformis Toxicity | 1.4652 | pIGC50, ug/L |
MRLs
| Food | Product Code | Country | MRLs | Application Date | Notes |
|---|---|---|---|---|---|
| Cherries | CAC | 5 mg/kg | |||
| Coconuts (Areca nuts/betel nuts,) | 0120050 | European Union | 0.05* | 26/04/2013 | |
| Macadamias | 0120070 | European Union | 0.05* | 26/04/2013 | |
| Pecans (Hickory nuts,) | 0120080 | European Union | 0.05* | 26/04/2013 | |
| Pistachios | 0120100 | European Union | 0.05* | 26/04/2013 | |
| Walnuts | 0120110 | European Union | 0.05* | 26/04/2013 | |
| Others (2) | 0120990 | European Union | 0.05* | 26/04/2013 | |
| Pome fruits | 0130000 | European Union | 0.02* | 26/04/2013 | |
| Apples (Crab apples/wild apples, Tejocotes,) | 0130010 | European Union | 0.02* | 26/04/2013 | |
| Pears (Nashi pears/Oriental pears, Wild pears, Ya pears/Chinese white pears,) | 0130020 | European Union | 0.02* | 26/04/2013 | |
| Quinces (Chinese quinces, Japanese quinces,) | 0130030 | European Union | 0.02* | 26/04/2013 | |
| Medlars | 0130040 | European Union | 0.02* | 26/04/2013 | |
| Loquats/Japanese medlars | 0130050 | European Union | 0.02* | 26/04/2013 | |
| Others (2) | 0130990 | European Union | 0.02* | 26/04/2013 | |
| Stone fruits | 0140000 | European Union | 0.02* | 26/04/2013 | |
| Apricots (Japanese apricots/Umes, Nectacots,) | 0140010 | European Union | 0.02* | 26/04/2013 | |
| Cherries (sweet) (Black cherries, Capulins, Chokecherries, Cornelian cherries/European corniols, Nanking cherries, Sour cherries/morello cherries,) | 0140020 | European Union | 0.02* | 26/04/2013 | |
| Peaches (Flat peaches/saturn peaches/paraguayas, Nectarines, Other hybrids of Persica vulgaris; syn: Prunus persica, not elsewhere mentioned,) | 0140030 | European Union | 0.02* | 26/04/2013 | |
| Plums (American plums, Beach plums, Cherry plums /myrabolans, Chickasaw plums, Chinese jujubes/red dates/Chinese dates, Damsons/ bullaces, Gages/greengages/Reine Claudes, Japanese plums, Klamath pl... | 0140040 | European Union | 0.02* | 26/04/2013 | |
| Others (2) | 0140990 | European Union | 0.02* | 26/04/2013 |
References
| Title | Journal | Date | Pubmed ID |
|---|---|---|---|
| [Residue Levels and Health Risk Assessment of Organochlorine Pesticides in Ricefrom Shanghai]. | Huan Jing Ke Xue | 2018 Feb 8 | 29964859 |
| Analysis of thermally labile pesticides by on-column injection gas chromatographyin fruit and vegetables. | Anal Bioanal Chem | 2018 Aug 13 | 30105623 |
| Pesticide residues in propolis from Spain and Chile. An approach using nearinfrared spectroscopy. | Talanta | 2017 Apr 1 | 28153295 |
| Monitoring survey of the use patterns and pesticide residues on vegetables in theNiayes zone, Senegal. | Chemosphere | 2016 Feb | 26519803 |
| Studies of pesticide residues in tomatoes and cucumbers from Kazakhstan and theassociated health risks. | Environ Monit Assess | 2015 Oct | 26337756 |
| Glyoxal-Urea-Formaldehyde Molecularly Imprinted Resin as Pipette Tip Solid-Phase Extraction Adsorbent for Selective Screening of Organochlorine Pesticides inSpinach. | J Agric Food Chem | 2015 Nov 4 | 26449689 |
| Production of date palm fruits free of acaricides residues by ozone technology aspost-harvest treatment. | J Food Sci Technol | 2015 Jun | 26028713 |
| Effects of DDT and dicofol on population growth of Brachionus calyciflorus under different algal (Scenedesmus obliquus) densities. | J Environ Biol | 2014 Sep | 25204066 |
| Vortex-assisted magnetic dispersive solid-phase microextraction for rapidscreening and recognition of dicofol residues in tea products. | Food Chem | 2014 Nov 1 | 24874364 |
| Community air monitoring for pesticides-part 2: multiresidue determination ofpesticides in air by gas chromatography, gas chromatography-mass spectrometry,and liquid chromatography-mass spectrometry. | Environ Monit Assess | 2014 Mar | 24370860 |
| Feasibility of using terahertz spectroscopy to detect seven different pesticides in wheat flour. | J Food Prot | 2014 Dec | 25474054 |
| Ionic liquid-mediated molecularly imprinted solid-phase extraction coupled withgas chromatography-electron capture detector for rapid screening of dicofol invegetables. | J Chromatogr A | 2013 Sep 13 | 23932224 |
| Synthesis of multi-core-shell magnetic molecularly imprinted microspheres forrapid recognition of dicofol in tea. | J Agric Food Chem | 2013 Mar 20 | 23432386 |
| Organochlorine compounds in bovine milk from the state of Mato Grosso doSul-Brazil. | Chemosphere | 2013 Mar | 23177004 |
| Pesticide residues in market foods in Shaanxi Province of China in 2010. | Food Chem | 2013 Jun 1 | 23411338 |
| Monitoring of pesticide residues in South Indian tea. | Environ Monit Assess | 2013 Aug | 23341056 |
| Spatial and seasonal variations of pesticide contamination in agricultural soils and crops sample from an intensive horticulture area of Hohhot, North-West China. | Environ Monit Assess | 2013 Aug | 23322504 |
| The interaction of α-chymotrypsin with one persistent organic pollutant(dicofol): spectroscope and molecular modeling identification. | Food Chem Toxicol | 2012 Sep | 22771722 |
| Analysis of six fungicides and one acaricide in still and fortified wines usingsolid-phase microextraction-gas chromatography/tandem mass spectrometry. | Food Chem | 2012 May 1 | 26434342 |
| [Residual level and ecological risk assessment of OCPs and PCBs in sediments ofmudflat shellfish culturing areas in Ningbo, Zhejiang Province of East China]. | Ying Yong Sheng Tai Xue Bao | 2012 Jun | 22937662 |
Targets
- General Function:
- Oxygen binding
- Specific Function:
- Catalyzes the formation of aromatic C18 estrogens from C19 androgens.
- Gene Name:
- CYP19A1
- Uniprot ID:
- P11511
- Molecular Weight:
- 57882.48 Da
- Mechanism of Action:
- Difocol may alter sex hormone metabolism by directly inhibiting cytochrome P-450 19A1.
References
- Vinggaard AM, Hnida C, Breinholt V, Larsen JC: Screening of selected pesticides for inhibition of CYP19 aromatase activity in vitro. Toxicol In Vitro. 2000 Jun;14(3):227-34. [10806373 ]
- General Function:
- Protease binding
- Specific Function:
- Initiates blood coagulation by forming a complex with circulating factor VII or VIIa. The [TF:VIIa] complex activates factors IX or X by specific limited protolysis. TF plays a role in normal hemostasis by initiating the cell-surface assembly and propagation of the coagulation protease cascade.
- Gene Name:
- F3
- Uniprot ID:
- P13726
- Molecular Weight:
- 33067.3 Da
References
- Sipes NS, Martin MT, Kothiya P, Reif DM, Judson RS, Richard AM, Houck KA, Dix DJ, Kavlock RJ, Knudsen TB: Profiling 976 ToxCast chemicals across 331 enzymatic and receptor signaling assays. Chem Res Toxicol. 2013 Jun 17;26(6):878-95. doi: 10.1021/tx400021f. Epub 2013 May 16. [23611293 ]
- General Function:
- Zinc ion binding
- Specific Function:
- Nuclear receptor that binds and is activated by variety of endogenous and xenobiotic compounds. Transcription factor that activates the transcription of multiple genes involved in the metabolism and secretion of potentially harmful xenobiotics, drugs and endogenous compounds. Activated by the antibiotic rifampicin and various plant metabolites, such as hyperforin, guggulipid, colupulone, and isoflavones. Response to specific ligands is species-specific. Activated by naturally occurring steroids, such as pregnenolone and progesterone. Binds to a response element in the promoters of the CYP3A4 and ABCB1/MDR1 genes.
- Gene Name:
- NR1I2
- Uniprot ID:
- O75469
- Molecular Weight:
- 49761.245 Da
References
- Kojima H, Sata F, Takeuchi S, Sueyoshi T, Nagai T: Comparative study of human and mouse pregnane X receptor agonistic activity in 200 pesticides using in vitro reporter gene assays. Toxicology. 2011 Feb 27;280(3):77-87. doi: 10.1016/j.tox.2010.11.008. Epub 2010 Nov 27. [21115097 ]
- General Function:
- Zinc ion binding
- Specific Function:
- Nuclear hormone receptor. Binds estrogens with an affinity similar to that of ESR1, and activates expression of reporter genes containing estrogen response elements (ERE) in an estrogen-dependent manner (PubMed:20074560). Isoform beta-cx lacks ligand binding ability and has no or only very low ere binding activity resulting in the loss of ligand-dependent transactivation ability. DNA-binding by ESR1 and ESR2 is rapidly lost at 37 degrees Celsius in the absence of ligand while in the presence of 17 beta-estradiol and 4-hydroxy-tamoxifen loss in DNA-binding at elevated temperature is more gradual.
- Gene Name:
- ESR2
- Uniprot ID:
- Q92731
- Molecular Weight:
- 59215.765 Da
- Mechanism of Action:
- Causes endocrine disruption in humans by binding to and inhibiting the estrogen receptor.
References
- Taccone-Gallucci M, Manca-di-Villahermosa S, Battistini L, Stuffler RG, Tedesco M, Maccarrone M: N-3 PUFAs reduce oxidative stress in ESRD patients on maintenance HD by inhibiting 5-lipoxygenase activity. Kidney Int. 2006 Apr;69(8):1450-4. [16531984 ]
- General Function:
- Zinc ion binding
- Specific Function:
- Steroid hormone receptors are ligand-activated transcription factors that regulate eukaryotic gene expression and affect cellular proliferation and differentiation in target tissues. Transcription factor activity is modulated by bound coactivator and corepressor proteins. Transcription activation is down-regulated by NR0B2. Activated, but not phosphorylated, by HIPK3 and ZIPK/DAPK3.
- Gene Name:
- AR
- Uniprot ID:
- P10275
- Molecular Weight:
- 98987.9 Da
- Mechanism of Action:
- Difocol is also an endocrine disruptor and binds both the androgen and estrogen receptor.
References
- Okubo T, Yokoyama Y, Kano K, Soya Y, Kano I: Estimation of estrogenic and antiestrogenic activities of selected pesticides by MCF-7 cell proliferation assay. Arch Environ Contam Toxicol. 2004 May;46(4):445-53. [15253041 ]
- General Function:
- Signal transducer activity
- Specific Function:
- This magnesium-dependent enzyme catalyzes the hydrolysis of ATP coupled with the transport of the calcium.
- Gene Name:
- ATP2C1
- Uniprot ID:
- P98194
- Molecular Weight:
- 100576.42 Da
- Mechanism of Action:
- This organochloride inhibits Na+/K+ ATPase and Ca2+ and Mg2+ ATPase, which are essential for the transport of calcium across membranes. This results in the accumulation of intracellular free calcium ions, which promotes release of neurotransmitters from storage vesicles, the subsequent depolarization of adjacent neurons, and the propagation of stimuli throughout the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Metal ion binding
- Specific Function:
- This magnesium-dependent enzyme catalyzes the hydrolysis of ATP coupled with the transport of calcium.
- Gene Name:
- ATP2C2
- Uniprot ID:
- O75185
- Molecular Weight:
- 103186.475 Da
- Mechanism of Action:
- This organochloride inhibits Na+/K+ ATPase and Ca2+ and Mg2+ ATPase, which are essential for the transport of calcium across membranes. This results in the accumulation of intracellular free calcium ions, which promotes release of neurotransmitters from storage vesicles, the subsequent depolarization of adjacent neurons, and the propagation of stimuli throughout the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- Uniprot ID:
- P62158
- Mechanism of Action:
- Difocol inhibits the ability of calmodulin, a calcium mediator in nerves, to transport calcium ions that are essential for the release of neurotransmitters. This reduces the rate of depolarization and increases the sensitivity of neurons to small stimuli that would not elicit a response in a fully depolarized neuron.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Inhibitory extracellular ligand-gated ion channel activity
- Specific Function:
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
- Gene Name:
- GABRA2
- Uniprot ID:
- P47869
- Molecular Weight:
- 51325.85 Da
- Mechanism of Action:
- This organochloride antagonizes the action of the neurotransmitter gamma-aminobutyric acid (GABA) acting at the GABA-A receptors, effectively blocking the GABA-induced uptake of chloride ions and causing hyperexcitability of the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Inhibitory extracellular ligand-gated ion channel activity
- Specific Function:
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
- Gene Name:
- GABRA3
- Uniprot ID:
- P34903
- Molecular Weight:
- 55164.055 Da
- Mechanism of Action:
- This organochloride antagonizes the action of the neurotransmitter gamma-aminobutyric acid (GABA) acting at the GABA-A receptors, effectively blocking the GABA-induced uptake of chloride ions and causing hyperexcitability of the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Inhibitory extracellular ligand-gated ion channel activity
- Specific Function:
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
- Gene Name:
- GABRA4
- Uniprot ID:
- P48169
- Molecular Weight:
- 61622.645 Da
- Mechanism of Action:
- This organochloride antagonizes the action of the neurotransmitter gamma-aminobutyric acid (GABA) acting at the GABA-A receptors, effectively blocking the GABA-induced uptake of chloride ions and causing hyperexcitability of the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Transporter activity
- Specific Function:
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
- Gene Name:
- GABRA5
- Uniprot ID:
- P31644
- Molecular Weight:
- 52145.645 Da
- Mechanism of Action:
- This organochloride antagonizes the action of the neurotransmitter gamma-aminobutyric acid (GABA) acting at the GABA-A receptors, effectively blocking the GABA-induced uptake of chloride ions and causing hyperexcitability of the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Inhibitory extracellular ligand-gated ion channel activity
- Specific Function:
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
- Gene Name:
- GABRA6
- Uniprot ID:
- Q16445
- Molecular Weight:
- 51023.69 Da
- Mechanism of Action:
- This organochloride antagonizes the action of the neurotransmitter gamma-aminobutyric acid (GABA) acting at the GABA-A receptors, effectively blocking the GABA-induced uptake of chloride ions and causing hyperexcitability of the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Ligand-gated ion channel activity
- Specific Function:
- Component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine. Functions as receptor for diazepines and various anesthetics, such as pentobarbital; these are bound at a separate allosteric effector binding site. Functions as ligand-gated chloride channel (By similarity).
- Gene Name:
- GABRB1
- Uniprot ID:
- P18505
- Molecular Weight:
- 54234.085 Da
- Mechanism of Action:
- This organochloride antagonizes the action of the neurotransmitter gamma-aminobutyric acid (GABA) acting at the GABA-A receptors, effectively blocking the GABA-induced uptake of chloride ions and causing hyperexcitability of the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Inhibitory extracellular ligand-gated ion channel activity
- Specific Function:
- Component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine. Functions as receptor for diazepines and various anesthetics, such as pentobarbital; these are bound at a separate allosteric effector binding site. Functions as ligand-gated chloride channel.
- Gene Name:
- GABRB2
- Uniprot ID:
- P47870
- Molecular Weight:
- 59149.895 Da
- Mechanism of Action:
- This organochloride antagonizes the action of the neurotransmitter gamma-aminobutyric acid (GABA) acting at the GABA-A receptors, effectively blocking the GABA-induced uptake of chloride ions and causing hyperexcitability of the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Gaba-gated chloride ion channel activity
- Specific Function:
- Component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine. Functions as receptor for diazepines and various anesthetics, such as pentobarbital; these are bound at a separate allosteric effector binding site. Functions as ligand-gated chloride channel.
- Gene Name:
- GABRB3
- Uniprot ID:
- P28472
- Molecular Weight:
- 54115.04 Da
- Mechanism of Action:
- This organochloride antagonizes the action of the neurotransmitter gamma-aminobutyric acid (GABA) acting at the GABA-A receptors, effectively blocking the GABA-induced uptake of chloride ions and causing hyperexcitability of the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Inhibitory extracellular ligand-gated ion channel activity
- Specific Function:
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
- Gene Name:
- GABRE
- Uniprot ID:
- P78334
- Molecular Weight:
- 57971.175 Da
- Mechanism of Action:
- This organochloride antagonizes the action of the neurotransmitter gamma-aminobutyric acid (GABA) acting at the GABA-A receptors, effectively blocking the GABA-induced uptake of chloride ions and causing hyperexcitability of the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Inhibitory extracellular ligand-gated ion channel activity
- Specific Function:
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
- Gene Name:
- GABRG1
- Uniprot ID:
- Q8N1C3
- Molecular Weight:
- 53594.49 Da
- Mechanism of Action:
- This organochloride antagonizes the action of the neurotransmitter gamma-aminobutyric acid (GABA) acting at the GABA-A receptors, effectively blocking the GABA-induced uptake of chloride ions and causing hyperexcitability of the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Inhibitory extracellular ligand-gated ion channel activity
- Specific Function:
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
- Gene Name:
- GABRG3
- Uniprot ID:
- Q99928
- Molecular Weight:
- 54288.16 Da
- Mechanism of Action:
- This organochloride antagonizes the action of the neurotransmitter gamma-aminobutyric acid (GABA) acting at the GABA-A receptors, effectively blocking the GABA-induced uptake of chloride ions and causing hyperexcitability of the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Gaba-a receptor activity
- Specific Function:
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel. In the uterus, the function of the receptor appears to be related to tissue contractility. The binding of this pI subunit with other GABA(A) receptor subunits alters the sensitivity of recombinant receptors to modulatory agents such as pregnanolone.
- Gene Name:
- GABRP
- Uniprot ID:
- O00591
- Molecular Weight:
- 50639.735 Da
- Mechanism of Action:
- This organochloride antagonizes the action of the neurotransmitter gamma-aminobutyric acid (GABA) acting at the GABA-A receptors, effectively blocking the GABA-induced uptake of chloride ions and causing hyperexcitability of the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Gaba-a receptor activity
- Specific Function:
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel. Rho-1 GABA receptor could play a role in retinal neurotransmission.
- Gene Name:
- GABRR1
- Uniprot ID:
- P24046
- Molecular Weight:
- 55882.91 Da
- Mechanism of Action:
- This organochloride antagonizes the action of the neurotransmitter gamma-aminobutyric acid (GABA) acting at the GABA-A receptors, effectively blocking the GABA-induced uptake of chloride ions and causing hyperexcitability of the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Gaba-a receptor activity
- Specific Function:
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel. Rho-2 GABA receptor could play a role in retinal neurotransmission.
- Gene Name:
- GABRR2
- Uniprot ID:
- P28476
- Molecular Weight:
- 54150.41 Da
- Mechanism of Action:
- This organochloride antagonizes the action of the neurotransmitter gamma-aminobutyric acid (GABA) acting at the GABA-A receptors, effectively blocking the GABA-induced uptake of chloride ions and causing hyperexcitability of the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Gaba-a receptor activity
- Specific Function:
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
- Gene Name:
- GABRR3
- Uniprot ID:
- A8MPY1
- Molecular Weight:
- 54271.1 Da
- Mechanism of Action:
- This organochloride antagonizes the action of the neurotransmitter gamma-aminobutyric acid (GABA) acting at the GABA-A receptors, effectively blocking the GABA-induced uptake of chloride ions and causing hyperexcitability of the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Transmembrane signaling receptor activity
- Specific Function:
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
- Gene Name:
- GABRQ
- Uniprot ID:
- Q9UN88
- Molecular Weight:
- 72020.875 Da
- Mechanism of Action:
- This organochloride antagonizes the action of the neurotransmitter gamma-aminobutyric acid (GABA) acting at the GABA-A receptors, effectively blocking the GABA-induced uptake of chloride ions and causing hyperexcitability of the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Protein c-terminus binding
- Specific Function:
- This magnesium-dependent enzyme catalyzes the hydrolysis of ATP coupled with the transport of calcium out of the cell.
- Gene Name:
- ATP2B2
- Uniprot ID:
- Q01814
- Molecular Weight:
- 136875.18 Da
- Mechanism of Action:
- This organochloride inhibits Na+/K+ ATPase and Ca2+ and Mg2+ ATPase, which are essential for the transport of calcium across membranes. This results in the accumulation of intracellular free calcium ions, which promotes release of neurotransmitters from storage vesicles, the subsequent depolarization of adjacent neurons, and the propagation of stimuli throughout the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Pdz domain binding
- Specific Function:
- This magnesium-dependent enzyme catalyzes the hydrolysis of ATP coupled with the transport of calcium out of the cell.
- Gene Name:
- ATP2B3
- Uniprot ID:
- Q16720
- Molecular Weight:
- 134196.025 Da
- Mechanism of Action:
- This organochloride inhibits Na+/K+ ATPase and Ca2+ and Mg2+ ATPase, which are essential for the transport of calcium across membranes. This results in the accumulation of intracellular free calcium ions, which promotes release of neurotransmitters from storage vesicles, the subsequent depolarization of adjacent neurons, and the propagation of stimuli throughout the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Voltage-gated sodium channel activity
- Specific Function:
- Hyperpolarization-activated ion channel exhibiting weak selectivity for potassium over sodium ions. Contributes to the native pacemaker currents in heart (If) and in neurons (Ih). May mediate responses to sour stimuli.
- Gene Name:
- HCN1
- Uniprot ID:
- O60741
- Molecular Weight:
- 98795.285 Da
- Mechanism of Action:
- Difocol inhibits the inactivation of voltaged-gated sodium channels. The channels activate (open) normally but are inactivated (closed) slowly, thus interfering with the active transport of sodium out of the nerve axon during repolarization and resulting in a state of hyperexcitability.
References
- Davies TG, Field LM, Usherwood PN, Williamson MS: DDT, pyrethrins, pyrethroids and insect sodium channels. IUBMB Life. 2007 Mar;59(3):151-62. [17487686 ]
- General Function:
- Voltage-gated sodium channel activity
- Specific Function:
- Hyperpolarization-activated potassium channel. May also facilitate the permeation of sodium ions.
- Gene Name:
- HCN3
- Uniprot ID:
- Q9P1Z3
- Molecular Weight:
- 86030.975 Da
- Mechanism of Action:
- Difocol inhibits the inactivation of voltaged-gated sodium channels. The channels activate (open) normally but are inactivated (closed) slowly, thus interfering with the active transport of sodium out of the nerve axon during repolarization and resulting in a state of hyperexcitability.
References
- Davies TG, Field LM, Usherwood PN, Williamson MS: DDT, pyrethrins, pyrethroids and insect sodium channels. IUBMB Life. 2007 Mar;59(3):151-62. [17487686 ]
- General Function:
- Voltage-gated sodium channel activity
- Specific Function:
- Hyperpolarization-activated ion channel with very slow activation and inactivation exhibiting weak selectivity for potassium over sodium ions. Contributes to the native pacemaker currents in heart (If) that regulate the rhythm of heart beat. May contribute to the native pacemaker currents in neurons (Ih). May mediate responses to sour stimuli.
- Gene Name:
- HCN4
- Uniprot ID:
- Q9Y3Q4
- Molecular Weight:
- 129040.65 Da
- Mechanism of Action:
- Difocol inhibits the inactivation of voltaged-gated sodium channels. The channels activate (open) normally but are inactivated (closed) slowly, thus interfering with the active transport of sodium out of the nerve axon during repolarization and resulting in a state of hyperexcitability.
References
- Davies TG, Field LM, Usherwood PN, Williamson MS: DDT, pyrethrins, pyrethroids and insect sodium channels. IUBMB Life. 2007 Mar;59(3):151-62. [17487686 ]
- General Function:
- Protein homodimerization activity
- Specific Function:
- Key regulator of striated muscle performance by acting as the major Ca(2+) ATPase responsible for the reuptake of cytosolic Ca(2+) into the sarcoplasmic reticulum. Catalyzes the hydrolysis of ATP coupled with the translocation of calcium from the cytosol to the sarcoplasmic reticulum lumen. Contributes to calcium sequestration involved in muscular excitation/contraction.
- Gene Name:
- ATP2A1
- Uniprot ID:
- O14983
- Molecular Weight:
- 110251.36 Da
- Mechanism of Action:
- This organochloride inhibits Na+/K+ ATPase and Ca2+ and Mg2+ ATPase, which are essential for the transport of calcium across membranes. This results in the accumulation of intracellular free calcium ions, which promotes release of neurotransmitters from storage vesicles, the subsequent depolarization of adjacent neurons, and the propagation of stimuli throughout the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Voltage-gated sodium channel activity
- Specific Function:
- Mediates the voltage-dependent sodium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a sodium-selective channel through which Na(+) ions may pass in accordance with their electrochemical gradient.
- Gene Name:
- SCN1A
- Uniprot ID:
- P35498
- Molecular Weight:
- 228969.49 Da
- Mechanism of Action:
- Difocol inhibits the inactivation of voltaged-gated sodium channels. The channels activate (open) normally but are inactivated (closed) slowly, thus interfering with the active transport of sodium out of the nerve axon during repolarization and resulting in a state of hyperexcitability.
References
- Davies TG, Field LM, Usherwood PN, Williamson MS: DDT, pyrethrins, pyrethroids and insect sodium channels. IUBMB Life. 2007 Mar;59(3):151-62. [17487686 ]
- General Function:
- Voltage-gated sodium channel activity
- Specific Function:
- This protein mediates the voltage-dependent sodium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a sodium-selective channel through which sodium ions may pass in accordance with their electrochemical gradient. It is a tetrodotoxin-resistant sodium channel isoform. Also involved, with the contribution of the receptor tyrosine kinase NTRK2, in rapid BDNF-evoked neuronal depolarization.
- Gene Name:
- SCN11A
- Uniprot ID:
- Q9UI33
- Molecular Weight:
- 204919.66 Da
- Mechanism of Action:
- Difocol inhibits the inactivation of voltaged-gated sodium channels. The channels activate (open) normally but are inactivated (closed) slowly, thus interfering with the active transport of sodium out of the nerve axon during repolarization and resulting in a state of hyperexcitability.
References
- Davies TG, Field LM, Usherwood PN, Williamson MS: DDT, pyrethrins, pyrethroids and insect sodium channels. IUBMB Life. 2007 Mar;59(3):151-62. [17487686 ]
- General Function:
- Voltage-gated sodium channel activity
- Specific Function:
- Mediates the voltage-dependent sodium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a sodium-selective channel through which Na(+) ions may pass in accordance with their electrochemical gradient.
- Gene Name:
- SCN2A
- Uniprot ID:
- Q99250
- Molecular Weight:
- 227972.64 Da
- Mechanism of Action:
- Difocol inhibits the inactivation of voltaged-gated sodium channels. The channels activate (open) normally but are inactivated (closed) slowly, thus interfering with the active transport of sodium out of the nerve axon during repolarization and resulting in a state of hyperexcitability.
References
- Davies TG, Field LM, Usherwood PN, Williamson MS: DDT, pyrethrins, pyrethroids and insect sodium channels. IUBMB Life. 2007 Mar;59(3):151-62. [17487686 ]
- General Function:
- Voltage-gated sodium channel activity
- Specific Function:
- This protein mediates the voltage-dependent sodium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a sodium-selective channel through which Na(+) ions may pass in accordance with their electrochemical gradient. This sodium channel may be present in both denervated and innervated skeletal muscle.
- Gene Name:
- SCN4A
- Uniprot ID:
- P35499
- Molecular Weight:
- 208059.175 Da
- Mechanism of Action:
- Difocol inhibits the inactivation of voltaged-gated sodium channels. The channels activate (open) normally but are inactivated (closed) slowly, thus interfering with the active transport of sodium out of the nerve axon during repolarization and resulting in a state of hyperexcitability.
References
- Davies TG, Field LM, Usherwood PN, Williamson MS: DDT, pyrethrins, pyrethroids and insect sodium channels. IUBMB Life. 2007 Mar;59(3):151-62. [17487686 ]
- General Function:
- Voltage-gated sodium channel activity
- Specific Function:
- Mediates the voltage-dependent sodium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a sodium-selective channel through which Na(+) ions may pass in accordance with their electrochemical gradient.
- Gene Name:
- SCN7A
- Uniprot ID:
- Q01118
- Molecular Weight:
- 193491.605 Da
- Mechanism of Action:
- Difocol inhibits the inactivation of voltaged-gated sodium channels. The channels activate (open) normally but are inactivated (closed) slowly, thus interfering with the active transport of sodium out of the nerve axon during repolarization and resulting in a state of hyperexcitability.
References
- Davies TG, Field LM, Usherwood PN, Williamson MS: DDT, pyrethrins, pyrethroids and insect sodium channels. IUBMB Life. 2007 Mar;59(3):151-62. [17487686 ]
- General Function:
- Voltage-gated sodium channel activity
- Specific Function:
- Mediates the voltage-dependent sodium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a sodium-selective channel through which Na(+) ions may pass in accordance with their electrochemical gradient. In macrophages and melanoma cells, isoform 5 may participate in the control of podosome and invadopodia formation.
- Gene Name:
- SCN8A
- Uniprot ID:
- Q9UQD0
- Molecular Weight:
- 225278.005 Da
- Mechanism of Action:
- Difocol inhibits the inactivation of voltaged-gated sodium channels. The channels activate (open) normally but are inactivated (closed) slowly, thus interfering with the active transport of sodium out of the nerve axon during repolarization and resulting in a state of hyperexcitability.
References
- Davies TG, Field LM, Usherwood PN, Williamson MS: DDT, pyrethrins, pyrethroids and insect sodium channels. IUBMB Life. 2007 Mar;59(3):151-62. [17487686 ]
- General Function:
- Voltage-gated sodium channel activity
- Specific Function:
- Mediates the voltage-dependent sodium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a sodium-selective channel through which Na(+) ions may pass in accordance with their electrochemical gradient. It is a tetrodotoxin-sensitive Na(+) channel isoform. Plays a role in pain mechanisms, especially in the development of inflammatory pain (By similarity).
- Gene Name:
- SCN9A
- Uniprot ID:
- Q15858
- Molecular Weight:
- 226370.175 Da
- Mechanism of Action:
- Difocol inhibits the inactivation of voltaged-gated sodium channels. The channels activate (open) normally but are inactivated (closed) slowly, thus interfering with the active transport of sodium out of the nerve axon during repolarization and resulting in a state of hyperexcitability.
References
- Davies TG, Field LM, Usherwood PN, Williamson MS: DDT, pyrethrins, pyrethroids and insect sodium channels. IUBMB Life. 2007 Mar;59(3):151-62. [17487686 ]
- General Function:
- Voltage-gated sodium channel activity involved in purkinje myocyte action potential
- Specific Function:
- Crucial in the assembly, expression, and functional modulation of the heterotrimeric complex of the sodium channel. The subunit beta-1 can modulate multiple alpha subunit isoforms from brain, skeletal muscle, and heart. Its association with neurofascin may target the sodium channels to the nodes of Ranvier of developing axons and retain these channels at the nodes in mature myelinated axons.Isoform 2: Cell adhesion molecule that plays a critical role in neuronal migration and pathfinding during brain development. Stimulates neurite outgrowth.
- Gene Name:
- SCN1B
- Uniprot ID:
- Q07699
- Molecular Weight:
- 24706.955 Da
- Mechanism of Action:
- Difocol inhibits the inactivation of voltaged-gated sodium channels. The channels activate (open) normally but are inactivated (closed) slowly, thus interfering with the active transport of sodium out of the nerve axon during repolarization and resulting in a state of hyperexcitability.
References
- Davies TG, Field LM, Usherwood PN, Williamson MS: DDT, pyrethrins, pyrethroids and insect sodium channels. IUBMB Life. 2007 Mar;59(3):151-62. [17487686 ]
- General Function:
- Voltage-gated sodium channel activity involved in cardiac muscle cell action potential
- Specific Function:
- Crucial in the assembly, expression, and functional modulation of the heterotrimeric complex of the sodium channel. The subunit beta-2 causes an increase in the plasma membrane surface area and in its folding into microvilli. Interacts with TNR may play a crucial role in clustering and regulation of activity of sodium channels at nodes of Ranvier (By similarity).
- Gene Name:
- SCN2B
- Uniprot ID:
- O60939
- Molecular Weight:
- 24325.69 Da
- Mechanism of Action:
- Difocol inhibits the inactivation of voltaged-gated sodium channels. The channels activate (open) normally but are inactivated (closed) slowly, thus interfering with the active transport of sodium out of the nerve axon during repolarization and resulting in a state of hyperexcitability.
References
- Davies TG, Field LM, Usherwood PN, Williamson MS: DDT, pyrethrins, pyrethroids and insect sodium channels. IUBMB Life. 2007 Mar;59(3):151-62. [17487686 ]
- General Function:
- Voltage-gated sodium channel activity involved in cardiac muscle cell action potential
- Specific Function:
- Modulates channel gating kinetics. Causes unique persistent sodium currents. Inactivates the sodium channel opening more slowly than the subunit beta-1. Its association with neurofascin may target the sodium channels to the nodes of Ranvier of developing axons and retain these channels at the nodes in mature myelinated axons (By similarity).
- Gene Name:
- SCN3B
- Uniprot ID:
- Q9NY72
- Molecular Weight:
- 24702.08 Da
- Mechanism of Action:
- Difocol inhibits the inactivation of voltaged-gated sodium channels. The channels activate (open) normally but are inactivated (closed) slowly, thus interfering with the active transport of sodium out of the nerve axon during repolarization and resulting in a state of hyperexcitability.
References
- Davies TG, Field LM, Usherwood PN, Williamson MS: DDT, pyrethrins, pyrethroids and insect sodium channels. IUBMB Life. 2007 Mar;59(3):151-62. [17487686 ]
- General Function:
- Steroid hormone binding
- Specific Function:
- This is the catalytic component of the active enzyme, which catalyzes the hydrolysis of ATP coupled with the exchange of sodium and potassium ions across the plasma membrane. This action creates the electrochemical gradient of sodium and potassium ions, providing the energy for active transport of various nutrients.
- Gene Name:
- ATP1A1
- Uniprot ID:
- P05023
- Molecular Weight:
- 112895.01 Da
- Mechanism of Action:
- This organochloride inhibits Na+/K+ ATPase and Ca2+ and Mg2+ ATPase, which are essential for the transport of calcium across membranes. This results in the accumulation of intracellular free calcium ions, which promotes release of neurotransmitters from storage vesicles, the subsequent depolarization of adjacent neurons, and the propagation of stimuli throughout the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Steroid hormone binding
- Specific Function:
- This is the catalytic component of the active enzyme, which catalyzes the hydrolysis of ATP coupled with the exchange of sodium and potassium ions across the plasma membrane. This action creates the electrochemical gradient of sodium and potassium, providing the energy for active transport of various nutrients.
- Gene Name:
- ATP1A2
- Uniprot ID:
- P50993
- Molecular Weight:
- 112264.385 Da
- Mechanism of Action:
- This organochloride inhibits Na+/K+ ATPase and Ca2+ and Mg2+ ATPase, which are essential for the transport of calcium across membranes. This results in the accumulation of intracellular free calcium ions, which promotes release of neurotransmitters from storage vesicles, the subsequent depolarization of adjacent neurons, and the propagation of stimuli throughout the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Steroid hormone binding
- Specific Function:
- This is the catalytic component of the active enzyme, which catalyzes the hydrolysis of ATP coupled with the exchange of sodium and potassium ions across the plasma membrane. This action creates the electrochemical gradient of sodium and potassium ions, providing the energy for active transport of various nutrients.
- Gene Name:
- ATP1A3
- Uniprot ID:
- P13637
- Molecular Weight:
- 111747.51 Da
- Mechanism of Action:
- This organochloride inhibits Na+/K+ ATPase and Ca2+ and Mg2+ ATPase, which are essential for the transport of calcium across membranes. This results in the accumulation of intracellular free calcium ions, which promotes release of neurotransmitters from storage vesicles, the subsequent depolarization of adjacent neurons, and the propagation of stimuli throughout the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Sodium:potassium-exchanging atpase activity
- Specific Function:
- This is the non-catalytic component of the active enzyme, which catalyzes the hydrolysis of ATP coupled with the exchange of Na(+) and K(+) ions across the plasma membrane. The beta subunit regulates, through assembly of alpha/beta heterodimers, the number of sodium pumps transported to the plasma membrane.Involved in cell adhesion and establishing epithelial cell polarity.
- Gene Name:
- ATP1B1
- Uniprot ID:
- P05026
- Molecular Weight:
- 35061.07 Da
- Mechanism of Action:
- This organochloride inhibits Na+/K+ ATPase and Ca2+ and Mg2+ ATPase, which are essential for the transport of calcium across membranes. This results in the accumulation of intracellular free calcium ions, which promotes release of neurotransmitters from storage vesicles, the subsequent depolarization of adjacent neurons, and the propagation of stimuli throughout the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Sodium:potassium-exchanging atpase activity
- Specific Function:
- This is the non-catalytic component of the active enzyme, which catalyzes the hydrolysis of ATP coupled with the exchange of Na(+) and K(+) ions across the plasma membrane. The exact function of the beta-3 subunit is not known.
- Gene Name:
- ATP1B3
- Uniprot ID:
- P54709
- Molecular Weight:
- 31512.34 Da
- Mechanism of Action:
- This organochloride inhibits Na+/K+ ATPase and Ca2+ and Mg2+ ATPase, which are essential for the transport of calcium across membranes. This results in the accumulation of intracellular free calcium ions, which promotes release of neurotransmitters from storage vesicles, the subsequent depolarization of adjacent neurons, and the propagation of stimuli throughout the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Identical protein binding
- Specific Function:
- Thyroid hormone-binding protein. Probably transports thyroxine from the bloodstream to the brain.
- Gene Name:
- TTR
- Uniprot ID:
- P02766
- Molecular Weight:
- 15886.88 Da
- Mechanism of Action:
- Difocol is able to competitively bind transthyretin, which lowers plasma thyroid hormone levels.
References
- Van den Berg KJ, van Raaij JA, Bragt PC, Notten WR: Interactions of halogenated industrial chemicals with transthyretin and effects on thyroid hormone levels in vivo. Arch Toxicol. 1991;65(1):15-9. [2043046 ]
- General Function:
- Steroid hydroxylase activity
- Specific Function:
- Responsible for the metabolism of a number of therapeutic agents such as the anticonvulsant drug S-mephenytoin, omeprazole, proguanil, certain barbiturates, diazepam, propranolol, citalopram and imipramine.
- Gene Name:
- CYP2C19
- Uniprot ID:
- P33261
- Molecular Weight:
- 55930.545 Da
References
- Sipes NS, Martin MT, Kothiya P, Reif DM, Judson RS, Richard AM, Houck KA, Dix DJ, Kavlock RJ, Knudsen TB: Profiling 976 ToxCast chemicals across 331 enzymatic and receptor signaling assays. Chem Res Toxicol. 2013 Jun 17;26(6):878-95. doi: 10.1021/tx400021f. Epub 2013 May 16. [23611293 ]
- Gene Name:
- CCL2
- Uniprot ID:
- P13500
- Molecular Weight:
- 11024.87 Da
References
- Sipes NS, Martin MT, Kothiya P, Reif DM, Judson RS, Richard AM, Houck KA, Dix DJ, Kavlock RJ, Knudsen TB: Profiling 976 ToxCast chemicals across 331 enzymatic and receptor signaling assays. Chem Res Toxicol. 2013 Jun 17;26(6):878-95. doi: 10.1021/tx400021f. Epub 2013 May 16. [23611293 ]
- General Function:
- Serine-type endopeptidase inhibitor activity
- Specific Function:
- Serine protease inhibitor. This inhibitor acts as 'bait' for tissue plasminogen activator, urokinase, protein C and matriptase-3/TMPRSS7. Its rapid interaction with PLAT may function as a major control point in the regulation of fibrinolysis.
- Gene Name:
- SERPINE1
- Uniprot ID:
- P05121
- Molecular Weight:
- 45059.695 Da
References
- Sipes NS, Martin MT, Kothiya P, Reif DM, Judson RS, Richard AM, Houck KA, Dix DJ, Kavlock RJ, Knudsen TB: Profiling 976 ToxCast chemicals across 331 enzymatic and receptor signaling assays. Chem Res Toxicol. 2013 Jun 17;26(6):878-95. doi: 10.1021/tx400021f. Epub 2013 May 16. [23611293 ]
- General Function:
- Transmembrane signaling receptor activity
- Specific Function:
- Thrombomodulin is a specific endothelial cell receptor that forms a 1:1 stoichiometric complex with thrombin. This complex is responsible for the conversion of protein C to the activated protein C (protein Ca). Once evolved, protein Ca scissions the activated cofactors of the coagulation mechanism, factor Va and factor VIIIa, and thereby reduces the amount of thrombin generated.
- Gene Name:
- THBD
- Uniprot ID:
- P07204
- Molecular Weight:
- 60328.72 Da
References
- Sipes NS, Martin MT, Kothiya P, Reif DM, Judson RS, Richard AM, Houck KA, Dix DJ, Kavlock RJ, Knudsen TB: Profiling 976 ToxCast chemicals across 331 enzymatic and receptor signaling assays. Chem Res Toxicol. 2013 Jun 17;26(6):878-95. doi: 10.1021/tx400021f. Epub 2013 May 16. [23611293 ]
- General Function:
- Urokinase plasminogen activator receptor activity
- Specific Function:
- Acts as a receptor for urokinase plasminogen activator. Plays a role in localizing and promoting plasmin formation. Mediates the proteolysis-independent signal transduction activation effects of U-PA. It is subject to negative-feedback regulation by U-PA which cleaves it into an inactive form.
- Gene Name:
- PLAUR
- Uniprot ID:
- Q03405
- Molecular Weight:
- 36977.62 Da
References
- Sipes NS, Martin MT, Kothiya P, Reif DM, Judson RS, Richard AM, Houck KA, Dix DJ, Kavlock RJ, Knudsen TB: Profiling 976 ToxCast chemicals across 331 enzymatic and receptor signaling assays. Chem Res Toxicol. 2013 Jun 17;26(6):878-95. doi: 10.1021/tx400021f. Epub 2013 May 16. [23611293 ]
- General Function:
- Steroid hydroxylase activity
- Specific Function:
- Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. Acts as a 1,4-cineole 2-exo-monooxygenase.
- Gene Name:
- CYP2B6
- Uniprot ID:
- P20813
- Molecular Weight:
- 56277.81 Da
References
- Sipes NS, Martin MT, Kothiya P, Reif DM, Judson RS, Richard AM, Houck KA, Dix DJ, Kavlock RJ, Knudsen TB: Profiling 976 ToxCast chemicals across 331 enzymatic and receptor signaling assays. Chem Res Toxicol. 2013 Jun 17;26(6):878-95. doi: 10.1021/tx400021f. Epub 2013 May 16. [23611293 ]
- General Function:
- Steroid hydroxylase activity
- Specific Function:
- Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. This enzyme contributes to the wide pharmacokinetics variability of the metabolism of drugs such as S-warfarin, diclofenac, phenytoin, tolbutamide and losartan.
- Gene Name:
- CYP2C9
- Uniprot ID:
- P11712
- Molecular Weight:
- 55627.365 Da
References
- Sipes NS, Martin MT, Kothiya P, Reif DM, Judson RS, Richard AM, Houck KA, Dix DJ, Kavlock RJ, Knudsen TB: Profiling 976 ToxCast chemicals across 331 enzymatic and receptor signaling assays. Chem Res Toxicol. 2013 Jun 17;26(6):878-95. doi: 10.1021/tx400021f. Epub 2013 May 16. [23611293 ]
- General Function:
- Sulfotransferase activity
- Specific Function:
- Sulfotransferase that utilizes 3'-phospho-5'-adenylyl sulfate (PAPS) as sulfonate donor to catalyze the sulfonation of steroids and bile acids in the liver and adrenal glands.
- Gene Name:
- SULT2A1
- Uniprot ID:
- Q06520
- Molecular Weight:
- 33779.57 Da
References
- Sipes NS, Martin MT, Kothiya P, Reif DM, Judson RS, Richard AM, Houck KA, Dix DJ, Kavlock RJ, Knudsen TB: Profiling 976 ToxCast chemicals across 331 enzymatic and receptor signaling assays. Chem Res Toxicol. 2013 Jun 17;26(6):878-95. doi: 10.1021/tx400021f. Epub 2013 May 16. [23611293 ]
- General Function:
- Vitamin d 24-hydroxylase activity
- Specific Function:
- Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics.
- Gene Name:
- CYP1A1
- Uniprot ID:
- P04798
- Molecular Weight:
- 58164.815 Da
References
- Sipes NS, Martin MT, Kothiya P, Reif DM, Judson RS, Richard AM, Houck KA, Dix DJ, Kavlock RJ, Knudsen TB: Profiling 976 ToxCast chemicals across 331 enzymatic and receptor signaling assays. Chem Res Toxicol. 2013 Jun 17;26(6):878-95. doi: 10.1021/tx400021f. Epub 2013 May 16. [23611293 ]
- General Function:
- Pdz domain binding
- Specific Function:
- This magnesium-dependent enzyme catalyzes the hydrolysis of ATP coupled with the transport of calcium out of the cell.
- Gene Name:
- ATP2B1
- Uniprot ID:
- P20020
- Molecular Weight:
- 138754.045 Da
- Mechanism of Action:
- This organochloride inhibits Na+/K+ ATPase and Ca2+ and Mg2+ ATPase, which are essential for the transport of calcium across membranes. This results in the accumulation of intracellular free calcium ions, which promotes release of neurotransmitters from storage vesicles, the subsequent depolarization of adjacent neurons, and the propagation of stimuli throughout the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Scaffold protein binding
- Specific Function:
- Calcium/calmodulin-regulated and magnesium-dependent enzyme that catalyzes the hydrolysis of ATP coupled with the transport of calcium out of the cell (PubMed:8530416). By regulating sperm cell calcium homeostasis, may play a role in sperm motility (By similarity).
- Gene Name:
- ATP2B4
- Uniprot ID:
- P23634
- Molecular Weight:
- 137919.03 Da
- Mechanism of Action:
- This organochloride inhibits Na+/K+ ATPase and Ca2+ and Mg2+ ATPase, which are essential for the transport of calcium across membranes. This results in the accumulation of intracellular free calcium ions, which promotes release of neurotransmitters from storage vesicles, the subsequent depolarization of adjacent neurons, and the propagation of stimuli throughout the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Zinc ion binding
- Specific Function:
- Nuclear hormone receptor. The steroid hormones and their receptors are involved in the regulation of eukaryotic gene expression and affect cellular proliferation and differentiation in target tissues. Ligand-dependent nuclear transactivation involves either direct homodimer binding to a palindromic estrogen response element (ERE) sequence or association with other DNA-binding transcription factors, such as AP-1/c-Jun, c-Fos, ATF-2, Sp1 and Sp3, to mediate ERE-independent signaling. Ligand binding induces a conformational change allowing subsequent or combinatorial association with multiprotein coactivator complexes through LXXLL motifs of their respective components. Mutual transrepression occurs between the estrogen receptor (ER) and NF-kappa-B in a cell-type specific manner. Decreases NF-kappa-B DNA-binding activity and inhibits NF-kappa-B-mediated transcription from the IL6 promoter and displace RELA/p65 and associated coregulators from the promoter. Recruited to the NF-kappa-B response element of the CCL2 and IL8 promoters and can displace CREBBP. Present with NF-kappa-B components RELA/p65 and NFKB1/p50 on ERE sequences. Can also act synergistically with NF-kappa-B to activate transcription involving respective recruitment adjacent response elements; the function involves CREBBP. Can activate the transcriptional activity of TFF1. Also mediates membrane-initiated estrogen signaling involving various kinase cascades. Isoform 3 is involved in activation of NOS3 and endothelial nitric oxide production. Isoforms lacking one or several functional domains are thought to modulate transcriptional activity by competitive ligand or DNA binding and/or heterodimerization with the full length receptor. Essential for MTA1-mediated transcriptional regulation of BRCA1 and BCAS3. Isoform 3 can bind to ERE and inhibit isoform 1.
- Gene Name:
- ESR1
- Uniprot ID:
- P03372
- Molecular Weight:
- 66215.45 Da
- Mechanism of Action:
- Causes endocrine disruption in humans by binding to and inhibiting the estrogen receptor.
References
- Taccone-Gallucci M, Manca-di-Villahermosa S, Battistini L, Stuffler RG, Tedesco M, Maccarrone M: N-3 PUFAs reduce oxidative stress in ESRD patients on maintenance HD by inhibiting 5-lipoxygenase activity. Kidney Int. 2006 Apr;69(8):1450-4. [16531984 ]
- General Function:
- Inhibitory extracellular ligand-gated ion channel activity
- Specific Function:
- Component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine. Functions as receptor for diazepines and various anesthetics, such as pentobarbital; these are bound at a separate allosteric effector binding site. Functions as ligand-gated chloride channel (By similarity).
- Gene Name:
- GABRA1
- Uniprot ID:
- P14867
- Molecular Weight:
- 51801.395 Da
- Mechanism of Action:
- This organochloride antagonizes the action of the neurotransmitter gamma-aminobutyric acid (GABA) acting at the GABA-A receptors, effectively blocking the GABA-induced uptake of chloride ions and causing hyperexcitability of the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Gaba-a receptor activity
- Specific Function:
- GABA, the major inhibitory neurotransmitter in the vertebrate brain, mediates neuronal inhibition by binding to the GABA/benzodiazepine receptor and opening an integral chloride channel.
- Gene Name:
- GABRD
- Uniprot ID:
- O14764
- Molecular Weight:
- 50707.835 Da
- Mechanism of Action:
- This organochloride antagonizes the action of the neurotransmitter gamma-aminobutyric acid (GABA) acting at the GABA-A receptors, effectively blocking the GABA-induced uptake of chloride ions and causing hyperexcitability of the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Inhibitory extracellular ligand-gated ion channel activity
- Specific Function:
- Component of the heteropentameric receptor for GABA, the major inhibitory neurotransmitter in the vertebrate brain. Functions also as histamine receptor and mediates cellular responses to histamine. Functions as receptor for diazepines and various anesthetics, such as pentobarbital; these are bound at a separate allosteric effector binding site. Functions as ligand-gated chloride channel.
- Gene Name:
- GABRG2
- Uniprot ID:
- P18507
- Molecular Weight:
- 54161.78 Da
- Mechanism of Action:
- This organochloride antagonizes the action of the neurotransmitter gamma-aminobutyric acid (GABA) acting at the GABA-A receptors, effectively blocking the GABA-induced uptake of chloride ions and causing hyperexcitability of the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Voltage-gated sodium channel activity
- Specific Function:
- Hyperpolarization-activated ion channel exhibiting weak selectivity for potassium over sodium ions. Contributes to the native pacemaker currents in heart (If) and in neurons (Ih). Can also transport ammonium in the distal nephron. Produces a large instantaneous current. Modulated by intracellular chloride ions and pH; acidic pH shifts the activation to more negative voltages (By similarity).
- Gene Name:
- HCN2
- Uniprot ID:
- Q9UL51
- Molecular Weight:
- 96949.43 Da
- Mechanism of Action:
- Difocol inhibits the inactivation of voltaged-gated sodium channels. The channels activate (open) normally but are inactivated (closed) slowly, thus interfering with the active transport of sodium out of the nerve axon during repolarization and resulting in a state of hyperexcitability.
References
- Davies TG, Field LM, Usherwood PN, Williamson MS: DDT, pyrethrins, pyrethroids and insect sodium channels. IUBMB Life. 2007 Mar;59(3):151-62. [17487686 ]
- General Function:
- S100 protein binding
- Specific Function:
- This magnesium-dependent enzyme catalyzes the hydrolysis of ATP coupled with the translocation of calcium from the cytosol to the sarcoplasmic reticulum lumen. Isoform 2 is involved in the regulation of the contraction/relaxation cycle.
- Gene Name:
- ATP2A2
- Uniprot ID:
- P16615
- Molecular Weight:
- 114755.765 Da
- Mechanism of Action:
- This organochloride inhibits Na+/K+ ATPase and Ca2+ and Mg2+ ATPase, which are essential for the transport of calcium across membranes. This results in the accumulation of intracellular free calcium ions, which promotes release of neurotransmitters from storage vesicles, the subsequent depolarization of adjacent neurons, and the propagation of stimuli throughout the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Metal ion binding
- Specific Function:
- This magnesium-dependent enzyme catalyzes the hydrolysis of ATP coupled with the transport of calcium. Transports calcium ions from the cytosol into the sarcoplasmic/endoplasmic reticulum lumen. Contributes to calcium sequestration involved in muscular excitation/contraction.
- Gene Name:
- ATP2A3
- Uniprot ID:
- Q93084
- Molecular Weight:
- 113976.23 Da
- Mechanism of Action:
- This organochloride inhibits Na+/K+ ATPase and Ca2+ and Mg2+ ATPase, which are essential for the transport of calcium across membranes. This results in the accumulation of intracellular free calcium ions, which promotes release of neurotransmitters from storage vesicles, the subsequent depolarization of adjacent neurons, and the propagation of stimuli throughout the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Voltage-gated sodium channel activity
- Specific Function:
- Tetrodotoxin-resistant channel that mediates the voltage-dependent sodium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a sodium-selective channel through which sodium ions may pass in accordance with their electrochemical gradient. Plays a role in neuropathic pain mechanisms.
- Gene Name:
- SCN10A
- Uniprot ID:
- Q9Y5Y9
- Molecular Weight:
- 220623.605 Da
- Mechanism of Action:
- Difocol inhibits the inactivation of voltaged-gated sodium channels. The channels activate (open) normally but are inactivated (closed) slowly, thus interfering with the active transport of sodium out of the nerve axon during repolarization and resulting in a state of hyperexcitability.
References
- Davies TG, Field LM, Usherwood PN, Williamson MS: DDT, pyrethrins, pyrethroids and insect sodium channels. IUBMB Life. 2007 Mar;59(3):151-62. [17487686 ]
- General Function:
- Voltage-gated sodium channel activity
- Specific Function:
- Mediates the voltage-dependent sodium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a sodium-selective channel through which Na(+) ions may pass in accordance with their electrochemical gradient.
- Gene Name:
- SCN3A
- Uniprot ID:
- Q9NY46
- Molecular Weight:
- 226291.905 Da
- Mechanism of Action:
- Difocol inhibits the inactivation of voltaged-gated sodium channels. The channels activate (open) normally but are inactivated (closed) slowly, thus interfering with the active transport of sodium out of the nerve axon during repolarization and resulting in a state of hyperexcitability.
References
- Davies TG, Field LM, Usherwood PN, Williamson MS: DDT, pyrethrins, pyrethroids and insect sodium channels. IUBMB Life. 2007 Mar;59(3):151-62. [17487686 ]
- General Function:
- Voltage-gated sodium channel activity involved in sa node cell action potential
- Specific Function:
- This protein mediates the voltage-dependent sodium ion permeability of excitable membranes. Assuming opened or closed conformations in response to the voltage difference across the membrane, the protein forms a sodium-selective channel through which Na(+) ions may pass in accordance with their electrochemical gradient. It is a tetrodotoxin-resistant Na(+) channel isoform. This channel is responsible for the initial upstroke of the action potential. Channel inactivation is regulated by intracellular calcium levels.
- Gene Name:
- SCN5A
- Uniprot ID:
- Q14524
- Molecular Weight:
- 226937.475 Da
- Mechanism of Action:
- Difocol inhibits the inactivation of voltaged-gated sodium channels. The channels activate (open) normally but are inactivated (closed) slowly, thus interfering with the active transport of sodium out of the nerve axon during repolarization and resulting in a state of hyperexcitability.
References
- Davies TG, Field LM, Usherwood PN, Williamson MS: DDT, pyrethrins, pyrethroids and insect sodium channels. IUBMB Life. 2007 Mar;59(3):151-62. [17487686 ]
- General Function:
- Voltage-gated sodium channel activity involved in cardiac muscle cell action potential
- Specific Function:
- Modulates channel gating kinetics. Causes negative shifts in the voltage dependence of activation of certain alpha sodium channels, but does not affect the voltage dependence of inactivation. Modulates the suceptibility of the sodium channel to inhibition by toxic peptides from spider, scorpion, wasp and sea anemone venom.
- Gene Name:
- SCN4B
- Uniprot ID:
- Q8IWT1
- Molecular Weight:
- 24968.755 Da
- Mechanism of Action:
- Difocol inhibits the inactivation of voltaged-gated sodium channels. The channels activate (open) normally but are inactivated (closed) slowly, thus interfering with the active transport of sodium out of the nerve axon during repolarization and resulting in a state of hyperexcitability.
References
- Davies TG, Field LM, Usherwood PN, Williamson MS: DDT, pyrethrins, pyrethroids and insect sodium channels. IUBMB Life. 2007 Mar;59(3):151-62. [17487686 ]
- General Function:
- Sodium:potassium-exchanging atpase activity
- Specific Function:
- This is the catalytic component of the active enzyme, which catalyzes the hydrolysis of ATP coupled with the exchange of sodium and potassium ions across the plasma membrane. This action creates the electrochemical gradient of sodium and potassium ions, providing the energy for active transport of various nutrients. Plays a role in sperm motility.
- Gene Name:
- ATP1A4
- Uniprot ID:
- Q13733
- Molecular Weight:
- 114165.44 Da
- Mechanism of Action:
- This organochloride inhibits Na+/K+ ATPase and Ca2+ and Mg2+ ATPase, which are essential for the transport of calcium across membranes. This results in the accumulation of intracellular free calcium ions, which promotes release of neurotransmitters from storage vesicles, the subsequent depolarization of adjacent neurons, and the propagation of stimuli throughout the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Sodium:potassium-exchanging atpase activity
- Specific Function:
- This is the non-catalytic component of the active enzyme, which catalyzes the hydrolysis of ATP coupled with the exchange of Na(+) and K(+) ions across the plasma membrane. The exact function of the beta-2 subunit is not known.Mediates cell adhesion of neurons and astrocytes, and promotes neurite outgrowth.
- Gene Name:
- ATP1B2
- Uniprot ID:
- P14415
- Molecular Weight:
- 33366.925 Da
- Mechanism of Action:
- This organochloride inhibits Na+/K+ ATPase and Ca2+ and Mg2+ ATPase, which are essential for the transport of calcium across membranes. This results in the accumulation of intracellular free calcium ions, which promotes release of neurotransmitters from storage vesicles, the subsequent depolarization of adjacent neurons, and the propagation of stimuli throughout the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Transporter activity
- Specific Function:
- May be involved in forming the receptor site for cardiac glycoside binding or may modulate the transport function of the sodium ATPase.
- Gene Name:
- FXYD2
- Uniprot ID:
- P54710
- Molecular Weight:
- 7283.265 Da
- Mechanism of Action:
- This organochloride inhibits Na+/K+ ATPase and Ca2+ and Mg2+ ATPase, which are essential for the transport of calcium across membranes. This results in the accumulation of intracellular free calcium ions, which promotes release of neurotransmitters from storage vesicles, the subsequent depolarization of adjacent neurons, and the propagation of stimuli throughout the central nervous system.
References
- Casarett LJ, Klaassen CD, and Watkins JB (2003). Casarett and Doull's essentials of toxicology. New York: McGraw-Hill/Medical Pub. Div.
- General Function:
- Temperature-gated cation channel activity
- Specific Function:
- Receptor-activated non-selective cation channel involved in detection of pain and possibly also in cold perception and inner ear function (PubMed:25389312, PubMed:25855297). Has a central role in the pain response to endogenous inflammatory mediators and to a diverse array of volatile irritants, such as mustard oil, cinnamaldehyde, garlic and acrolein, an irritant from tears gas and vehicule exhaust fumes (PubMed:25389312, PubMed:20547126). Is also activated by menthol (in vitro)(PubMed:25389312). Acts also as a ionotropic cannabinoid receptor by being activated by delta(9)-tetrahydrocannabinol (THC), the psychoactive component of marijuana (PubMed:25389312). May be a component for the mechanosensitive transduction channel of hair cells in inner ear, thereby participating in the perception of sounds. Probably operated by a phosphatidylinositol second messenger system (By similarity).
- Gene Name:
- TRPA1
- Uniprot ID:
- O75762
- Molecular Weight:
- 127499.88 Da
References
- Nilius B, Prenen J, Owsianik G: Irritating channels: the case of TRPA1. J Physiol. 2011 Apr 1;589(Pt 7):1543-9. doi: 10.1113/jphysiol.2010.200717. Epub 2010 Nov 15. [21078588 ]
- General Function:
- Steroid binding
- Specific Function:
- UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. This isoform glucuronidates bilirubin IX-alpha to form both the IX-alpha-C8 and IX-alpha-C12 monoconjugates and diconjugate. Is also able to catalyze the glucuronidation of 17beta-estradiol, 17alpha-ethinylestradiol, 1-hydroxypyrene, 4-methylumbelliferone, 1-naphthol, paranitrophenol, scopoletin, and umbelliferone. Isoform 2 lacks transferase activity but acts as a negative regulator of isoform 1.
- Gene Name:
- UGT1A1
- Uniprot ID:
- P22309
- Molecular Weight:
- 59590.91 Da
References
- Sipes NS, Martin MT, Kothiya P, Reif DM, Judson RS, Richard AM, Houck KA, Dix DJ, Kavlock RJ, Knudsen TB: Profiling 976 ToxCast chemicals across 331 enzymatic and receptor signaling assays. Chem Res Toxicol. 2013 Jun 17;26(6):878-95. doi: 10.1021/tx400021f. Epub 2013 May 16. [23611293 ]
- General Function:
- Vitamin d3 25-hydroxylase activity
- Specific Function:
- Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It performs a variety of oxidation reactions (e.g. caffeine 8-oxidation, omeprazole sulphoxidation, midazolam 1'-hydroxylation and midazolam 4-hydroxylation) of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. Acts as a 1,8-cineole 2-exo-monooxygenase. The enzyme also hydroxylates etoposide (PubMed:11159812). Catalyzes 4-beta-hydroxylation of cholesterol. May catalyze 25-hydroxylation of cholesterol in vitro (PubMed:21576599).
- Gene Name:
- CYP3A4
- Uniprot ID:
- P08684
- Molecular Weight:
- 57342.67 Da
References
- Sipes NS, Martin MT, Kothiya P, Reif DM, Judson RS, Richard AM, Houck KA, Dix DJ, Kavlock RJ, Knudsen TB: Profiling 976 ToxCast chemicals across 331 enzymatic and receptor signaling assays. Chem Res Toxicol. 2013 Jun 17;26(6):878-95. doi: 10.1021/tx400021f. Epub 2013 May 16. [23611293 ]