Calsequestrin-2


NameCalsequestrin-2
Synonyms
  • Calsequestrin, cardiac muscle isoform
Gene NameCASQ2
OrganismHomo sapiens
Amino acid sequence
>lcl|BSEQ0049484|Calsequestrin-2
MKRTHLFIVGIYFLSSCRAEEGLNFPTYDGKDRVVSLSEKNFKQVLKKYDLLCLYYHEPV
SSDKVTQKQFQLKEIVLELVAQVLEHKAIGFVMVDAKKEAKLAKKLGFDEEGSLYILKGD
RTIEFDGEFAADVLVEFLLDLIEDPVEIISSKLEVQAFERIEDYIKLIGFFKSEDSEYYK
AFEEAAEHFQPYIKFFATFDKGVAKKLSLKMNEVDFYEPFMDEPIAIPNKPYTEEELVEF
VKEHQRPTLRRLRPEEMFETWEDDLNGIHIVAFAEKSDPDGYEFLEILKQVARDNTDNPD
LSILWIDPDDFPLLVAYWEKTFKIDLFRPQIGVVNVTDADSVWMEIPDDDDLPTAEELED
WIEDVLSGKINTEDDDEDDDDDDNSDEEDNDDSDDDDDE
Number of residuesNone
Molecular Weight46435.28
Theoretical pINone
GO Classification
Functions
  • calcium-dependent protein binding
  • calcium ion binding
  • protein homodimerization activity
Processes
  • regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion
  • negative regulation of potassium ion transport
  • negative regulation of ryanodine-sensitive calcium-release channel activity
  • regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum
  • protein polymerization
  • striated muscle contraction
  • regulation of cardiac conduction
  • cellular response to caffeine
  • sequestering of calcium ion
  • Purkinje myocyte to ventricular cardiac muscle cell signaling
  • ion transmembrane transport
  • negative regulation of potassium ion transmembrane transporter activity
  • detection of calcium ion
  • regulation of cell communication by electrical coupling
  • cardiac muscle contraction
  • sarcomere organization
  • regulation of heart rate
  • regulation of membrane repolarization
Components
  • intracellular
  • cytoplasm
  • junctional sarcoplasmic reticulum membrane
  • sarcoplasmic reticulum lumen
  • Z disc
  • junctional membrane complex
  • sarcoplasmic reticulum membrane
  • sarcoplasmic reticulum
  • calcium channel complex
General FunctionCalsequestrin is a high-capacity, moderate affinity, calcium-binding protein and thus acts as an internal calcium store in muscle. Calcium ions are bound by clusters of acidic residues at the protein surface, especially at the interface between subunits. Can bind around 60 Ca(2+) ions. Regulates the release of lumenal Ca(2+) via the calcium release channel RYR2; this plays an important role in triggering muscle contraction. Plays a role in excitation-contraction coupling in the heart and in regulating the rate of heart beats.
Specific FunctionCalcium ion binding
Transmembrane Regions
GenBank Protein ID
UniProtKB IDO14958
UniProtKB Entry Name
Cellular LocationSarcoplasmic reticulum lumen
Gene sequence
>lcl|BSEQ0049485|Calsequestrin-2 (CASQ2)
ATGAAGAGAACTCACTTGTTTATTGTGGGGATTTATTTTCTGTCCTCTTGCAGGGCAGAA
GAGGGGCTTAATTTCCCCACATATGATGGGAAGGACCGAGTGGTAAGTCTTTCCGAGAAG
AACTTCAAGCAGGTTTTAAAGAAATATGACTTGCTTTGCCTCTACTACCATGAGCCGGTG
TCTTCAGATAAGGTCACGCAAAAACAGTTCCAACTGAAAGAAATCGTGCTTGAGCTTGTG
GCCCAGGTCCTTGAACATAAAGCTATAGGCTTTGTGATGGTGGATGCCAAGAAAGAAGCC
AAGCTTGCCAAGAAACTGGGTTTTGATGAAGAAGGAAGCCTGTATATTCTTAAGGGTGAT
CGCACAATAGAGTTTGATGGCGAGTTTGCAGCTGATGTCTTGGTGGAGTTCCTCTTGGAT
CTAATTGAAGACCCAGTGGAGATCATCAGCAGCAAACTGGAAGTCCAAGCCTTCGAACGC
ATTGAAGACTACATCAAACTCATTGGCTTTTTCAAGAGTGAGGACTCAGAATACTACAAG
GCTTTTGAAGAAGCAGCTGAACACTTCCAGCCTTACATCAAATTCTTTGCCACCTTTGAC
AAAGGGGTTGCAAAGAAATTATCTTTGAAGATGAATGAGGTTGACTTCTATGAGCCATTT
ATGGATGAGCCCATTGCCATCCCCAACAAACCTTACACAGAAGAGGAGCTGGTGGAGTTT
GTGAAGGAACACCAAAGACCCACTCTACGTCGCCTGCGCCCAGAAGAAATGTTTGAAACA
TGGGAAGATGATTTGAATGGGATCCACATTGTGGCCTTTGCAGAGAAGAGTGATCCAGAT
GGCTACGAATTCCTGGAGATCCTGAAACAGGTTGCCCGGGACAATACTGACAACCCCGAT
CTGAGCATCCTGTGGATCGACCCGGACGACTTTCCTCTGCTCGTTGCCTACTGGGAGAAG
ACTTTCAAGATTGACCTATTCAGGCCACAGATTGGGGTGGTGAATGTCACAGATGCTGAC
AGTGTCTGGATGGAGATTCCAGATGATGACGATCTTCCAACTGCTGAGGAGCTGGAGGAC
TGGATTGAGGATGTGCTTTCTGGAAAGATAAACACTGAAGATGATGATGAAGATGATGAT
GATGATGATAATTCTGATGAAGAGGATAATGATGACAGTGATGACGATGATGATGAATAG
GenBank Gene ID
GeneCard IDNone
GenAtlas ID
HGNC ID
Chromosome Location1
Locus1p13.1
References
  1. Ota T, Suzuki Y, Nishikawa T, Otsuki T, Sugiyama T, Irie R, Wakamatsu A, Hayashi K, Sato H, Nagai K, Kimura K, Makita H, Sekine M, Obayashi M, Nishi T, Shibahara T, Tanaka T, Ishii S, Yamamoto J, Saito K, Kawai Y, Isono Y, Nakamura Y, Nagahari K, Murakami K, Yasuda T, Iwayanagi T, Wagatsuma M, Shiratori A, Sudo H, Hosoiri T, Kaku Y, Kodaira H, Kondo H, Sugawara M, Takahashi M, Kanda K, Yokoi T, Furuya T, Kikkawa E, Omura Y, Abe K, Kamihara K, Katsuta N, Sato K, Tanikawa M, Yamazaki M, Ninomiya K, Ishibashi T, Yamashita H, Murakawa K, Fujimori K, Tanai H, Kimata M, Watanabe M, Hiraoka S, Chiba Y, Ishida S, Ono Y, Takiguchi S, Watanabe S, Yosida M, Hotuta T, Kusano J, Kanehori K, Takahashi-Fujii A, Hara H, Tanase TO, Nomura Y, Togiya S, Komai F, Hara R, Takeuchi K, Arita M, Imose N, Musashino K, Yuuki H, Oshima A, Sasaki N, Aotsuka S, Yoshikawa Y, Matsunawa H, Ichihara T, Shiohata N, Sano S, Moriya S, Momiyama H, Satoh N, Takami S, Terashima Y, Suzuki O, Nakagawa S, Senoh A, Mizoguchi H, Goto Y, Shimizu F, Wakebe H, Hishigaki H, Watanabe T, Sugiyama A, Takemoto M, Kawakami B, Yamazaki M, Watanabe K, Kumagai A, Itakura S, Fukuzumi Y, Fujimori Y, Komiyama M, Tashiro H, Tanigami A, Fujiwara T, Ono T, Yamada K, Fujii Y, Ozaki K, Hirao M, Ohmori Y, Kawabata A, Hikiji T, Kobatake N, Inagaki H, Ikema Y, Okamoto S, Okitani R, Kawakami T, Noguchi S, Itoh T, Shigeta K, Senba T, Matsumura K, Nakajima Y, Mizuno T, Morinaga M, Sasaki M, Togashi T, Oyama M, Hata H, Watanabe M, Komatsu T, Mizushima-Sugano J, Satoh T, Shirai Y, Takahashi Y, Nakagawa K, Okumura K, Nagase T, Nomura N, Kikuchi H, Masuho Y, Yamashita R, Nakai K, Yada T, Nakamura Y, Ohara O, Isogai T, Sugano S: Complete sequencing and characterization of 21,243 full-length human cDNAs. Nat Genet. 2004 Jan;36(1):40-5. Epub 2003 Dec 21. [14702039 ]
  2. Gregory SG, Barlow KF, McLay KE, Kaul R, Swarbreck D, Dunham A, Scott CE, Howe KL, Woodfine K, Spencer CC, Jones MC, Gillson C, Searle S, Zhou Y, Kokocinski F, McDonald L, Evans R, Phillips K, Atkinson A, Cooper R, Jones C, Hall RE, Andrews TD, Lloyd C, Ainscough R, Almeida JP, Ambrose KD, Anderson F, Andrew RW, Ashwell RI, Aubin K, Babbage AK, Bagguley CL, Bailey J, Beasley H, Bethel G, Bird CP, Bray-Allen S, Brown JY, Brown AJ, Buckley D, Burton J, Bye J, Carder C, Chapman JC, Clark SY, Clarke G, Clee C, Cobley V, Collier RE, Corby N, Coville GJ, Davies J, Deadman R, Dunn M, Earthrowl M, Ellington AG, Errington H, Frankish A, Frankland J, French L, Garner P, Garnett J, Gay L, Ghori MR, Gibson R, Gilby LM, Gillett W, Glithero RJ, Grafham DV, Griffiths C, Griffiths-Jones S, Grocock R, Hammond S, Harrison ES, Hart E, Haugen E, Heath PD, Holmes S, Holt K, Howden PJ, Hunt AR, Hunt SE, Hunter G, Isherwood J, James R, Johnson C, Johnson D, Joy A, Kay M, Kershaw JK, Kibukawa M, Kimberley AM, King A, Knights AJ, Lad H, Laird G, Lawlor S, Leongamornlert DA, Lloyd DM, Loveland J, Lovell J, Lush MJ, Lyne R, Martin S, Mashreghi-Mohammadi M, Matthews L, Matthews NS, McLaren S, Milne S, Mistry S, Moore MJ, Nickerson T, O'Dell CN, Oliver K, Palmeiri A, Palmer SA, Parker A, Patel D, Pearce AV, Peck AI, Pelan S, Phelps K, Phillimore BJ, Plumb R, Rajan J, Raymond C, Rouse G, Saenphimmachak C, Sehra HK, Sheridan E, Shownkeen R, Sims S, Skuce CD, Smith M, Steward C, Subramanian S, Sycamore N, Tracey A, Tromans A, Van Helmond Z, Wall M, Wallis JM, White S, Whitehead SL, Wilkinson JE, Willey DL, Williams H, Wilming L, Wray PW, Wu Z, Coulson A, Vaudin M, Sulston JE, Durbin R, Hubbard T, Wooster R, Dunham I, Carter NP, McVean G, Ross MT, Harrow J, Olson MV, Beck S, Rogers J, Bentley DR, Banerjee R, Bryant SP, Burford DC, Burrill WD, Clegg SM, Dhami P, Dovey O, Faulkner LM, Gribble SM, Langford CF, Pandian RD, Porter KM, Prigmore E: The DNA sequence and biological annotation of human chromosome 1. Nature. 2006 May 18;441(7091):315-21. [16710414 ]
  3. Gerhard DS, Wagner L, Feingold EA, Shenmen CM, Grouse LH, Schuler G, Klein SL, Old S, Rasooly R, Good P, Guyer M, Peck AM, Derge JG, Lipman D, Collins FS, Jang W, Sherry S, Feolo M, Misquitta L, Lee E, Rotmistrovsky K, Greenhut SF, Schaefer CF, Buetow K, Bonner TI, Haussler D, Kent J, Kiekhaus M, Furey T, Brent M, Prange C, Schreiber K, Shapiro N, Bhat NK, Hopkins RF, Hsie F, Driscoll T, Soares MB, Casavant TL, Scheetz TE, Brown-stein MJ, Usdin TB, Toshiyuki S, Carninci P, Piao Y, Dudekula DB, Ko MS, Kawakami K, Suzuki Y, Sugano S, Gruber CE, Smith MR, Simmons B, Moore T, Waterman R, Johnson SL, Ruan Y, Wei CL, Mathavan S, Gunaratne PH, Wu J, Garcia AM, Hulyk SW, Fuh E, Yuan Y, Sneed A, Kowis C, Hodgson A, Muzny DM, McPherson J, Gibbs RA, Fahey J, Helton E, Ketteman M, Madan A, Rodrigues S, Sanchez A, Whiting M, Madari A, Young AC, Wetherby KD, Granite SJ, Kwong PN, Brinkley CP, Pearson RL, Bouffard GG, Blakesly RW, Green ED, Dickson MC, Rodriguez AC, Grimwood J, Schmutz J, Myers RM, Butterfield YS, Griffith M, Griffith OL, Krzywinski MI, Liao N, Morin R, Palmquist D, Petrescu AS, Skalska U, Smailus DE, Stott JM, Schnerch A, Schein JE, Jones SJ, Holt RA, Baross A, Marra MA, Clifton S, Makowski KA, Bosak S, Malek J: The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC). Genome Res. 2004 Oct;14(10B):2121-7. [15489334 ]
  4. Dephoure N, Zhou C, Villen J, Beausoleil SA, Bakalarski CE, Elledge SJ, Gygi SP: A quantitative atlas of mitotic phosphorylation. Proc Natl Acad Sci U S A. 2008 Aug 5;105(31):10762-7. doi: 10.1073/pnas.0805139105. Epub 2008 Jul 31. [18669648 ]
  5. Sanchez EJ, Munske GR, Criswell A, Milting H, Dunker AK, Kang C: Phosphorylation of human calsequestrin: implications for calcium regulation. Mol Cell Biochem. 2011 Jul;353(1-2):195-204. doi: 10.1007/s11010-011-0787-4. Epub 2011 Mar 17. [21416293 ]
  6. Kim E, Youn B, Kemper L, Campbell C, Milting H, Varsanyi M, Kang C: Characterization of human cardiac calsequestrin and its deleterious mutants. J Mol Biol. 2007 Nov 2;373(4):1047-57. Epub 2007 Aug 29. [17881003 ]
  7. Lahat H, Pras E, Olender T, Avidan N, Ben-Asher E, Man O, Levy-Nissenbaum E, Khoury A, Lorber A, Goldman B, Lancet D, Eldar M: A missense mutation in a highly conserved region of CASQ2 is associated with autosomal recessive catecholamine-induced polymorphic ventricular tachycardia in Bedouin families from Israel. Am J Hum Genet. 2001 Dec;69(6):1378-84. Epub 2001 Oct 25. [11704930 ]
  8. Laitinen PJ, Swan H, Kontula K: Molecular genetics of exercise-induced polymorphic ventricular tachycardia: identification of three novel cardiac ryanodine receptor mutations and two common calsequestrin 2 amino-acid polymorphisms. Eur J Hum Genet. 2003 Nov;11(11):888-91. [14571276 ]
  9. Houle TD, Ram ML, Cala SE: Calsequestrin mutant D307H exhibits depressed binding to its protein targets and a depressed response to calcium. Cardiovasc Res. 2004 Nov 1;64(2):227-33. [15485681 ]
  10. di Barletta MR, Viatchenko-Karpinski S, Nori A, Memmi M, Terentyev D, Turcato F, Valle G, Rizzi N, Napolitano C, Gyorke S, Volpe P, Priori SG: Clinical phenotype and functional characterization of CASQ2 mutations associated with catecholaminergic polymorphic ventricular tachycardia. Circulation. 2006 Sep 5;114(10):1012-9. Epub 2006 Aug 14. [16908766 ]
  11. Valle G, Galla D, Nori A, Priori SG, Gyorke S, de Filippis V, Volpe P: Catecholaminergic polymorphic ventricular tachycardia-related mutations R33Q and L167H alter calcium sensitivity of human cardiac calsequestrin. Biochem J. 2008 Jul 15;413(2):291-303. doi: 10.1042/BJ20080163. [18399795 ]
  12. Gray B, Bagnall RD, Lam L, Ingles J, Turner C, Haan E, Davis A, Yang PC, Clancy CE, Sy RW, Semsarian C: A novel heterozygous mutation in cardiac calsequestrin causes autosomal dominant catecholaminergic polymorphic ventricular tachycardia. Heart Rhythm. 2016 Aug;13(8):1652-60. doi: 10.1016/j.hrthm.2016.05.004. Epub 2016 May 5. [27157848 ]

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