Serine palmitoyltransferase 2

NameSerine palmitoyltransferase 2
Synonyms2.3.1.50 KIAA0526 LCB 2 LCB2 LCB2a Long chain base biosynthesis protein 2 Long chain base biosynthesis protein 2a Serine-palmitoyl-CoA transferase 2 SPT 2
Gene NameSPTLC2
OrganismHuman
Amino acid sequence
>lcl|BSEQ0001316|Serine palmitoyltransferase 2
MRPEPGGCCCRRTVRANGCVANGEVRNGYVRSSAAAAAAAAAGQIHHVTQNGGLYKRPFN
EAFEETPMLVAVLTYVGYGVLTLFGYLRDFLRYWRIEKCHHATEREEQKDFVSLYQDFEN
FYTRNLYMRIRDNWNRPICSVPGARVDIMERQSHDYNWSFKYTGNIIKGVINMGSYNYLG
FARNTGSCQEAAAKVLEEYGAGVCSTRQEIGNLDKHEELEELVARFLGVEAAMAYGMGFA
TNSMNIPALVGKGCLILSDELNHASLVLGARLSGATIRIFKHNNMQSLEKLLKDAIVYGQ
PRTRRPWKKILILVEGIYSMEGSIVRLPEVIALKKKYKAYLYLDEAHSIGALGPTGRGVV
EYFGLDPEDVDVMMGTFTKSFGASGGYIGGKKELIDYLRTHSHSAVYATSLSPPVVEQII
TSMKCIMGQDGTSLGKECVQQLAENTRYFRRRLKEMGFIIYGNEDSPVVPLMLYMPAKIG
AFGREMLKRNIGVVVVGFPATPIIESRARFCLSAAHTKEILDTALKEIDEVGDLLQLKYS
RHRLVPLLDRPFDETTYEETED
Number of residues562
Molecular Weight62923.765
Theoretical pI7.85
GO Classification
Functions
    serine C-palmitoyltransferase activity
pyridoxal phosphate binding
Processes
    ceramide biosynthetic process
sphinganine biosynthetic process
sphingomyelin biosynthetic process
sphingosine biosynthetic process
small molecule metabolic process
sphingolipid biosynthetic process
sphingolipid metabolic process
Components
    mitochondrion
endoplasmic reticulum membrane
integral component of membrane
serine C-palmitoyltransferase complex
General FunctionSerine c-palmitoyltransferase activity
Specific FunctionSerine palmitoyltransferase (SPT). The heterodimer formed with LCB1/SPTLC1 constitutes the catalytic core. The composition of the serine palmitoyltransferase (SPT) complex determines the substrate preference. The SPTLC1-SPTLC2-SPTSSA complex shows a strong preference for C16-CoA substrate, while the SPTLC1-SPTLC2-SPTSSB complex displays a preference for C18-CoA substrate.
Transmembrane Regions67-87
GenBank Protein ID2564249
UniProtKB IDO15270
UniProtKB Entry NameSPTC2_HUMAN
Cellular LocationEndoplasmic reticulum membrane
Gene sequence
>lcl|BSEQ0010460|Serine palmitoyltransferase 2 (SPTLC2)
ATGCGGCCGGAGCCCGGAGGCTGCTGCTGCCGCCGCACGGTGCGGGCGAATGGCTGCGTG
GCGAACGGGGAAGTACGGAACGGGTACGTGAGGAGCAGCGCTGCAGCCGCAGCCGCAGCC
GCCGCCGGCCAGATCCATCATGTTACACAAAATGGAGGACTATATAAAAGACCGTTTAAT
GAAGCTTTTGAAGAAACACCAATGCTGGTTGCTGTGCTCACGTATGTGGGGTATGGCGTA
CTCACCCTCTTTGGATATCTTCGAGATTTCTTGAGGTATTGGAGAATTGAAAAGTGTCAC
CATGCAACAGAAAGAGAAGAACAAAAGGACTTTGTGTCATTGTATCAAGATTTTGAAAAC
TTTTATACAAGGAATCTGTACATGAGGATAAGAGACAACTGGAATCGGCCAATCTGTAGT
GTGCCTGGAGCCAGGGTGGACATCATGGAGAGACAGTCTCATGATTATAACTGGTCCTTC
AAGTATACAGGGAATATAATAAAGGGTGTTATAAACATGGGTTCCTACAACTATCTTGGA
TTTGCACGGAATACTGGATCATGTCAAGAAGCAGCCGCCAAAGTCCTTGAGGAGTATGGA
GCTGGAGTGTGCAGTACTCGGCAGGAAATTGGAAACCTGGACAAGCATGAAGAACTAGAG
GAGCTTGTAGCAAGGTTCTTAGGAGTAGAAGCTGCTATGGCGTATGGCATGGGATTTGCA
ACGAATTCAATGAACATTCCTGCTCTTGTTGGCAAAGGTTGCCTGATTCTGAGTGATGAA
CTGAATCATGCATCACTGGTTCTGGGAGCCAGACTGTCAGGAGCAACCATTAGAATCTTC
AAACACAACAATATGCAAAGCCTAGAGAAGCTATTGAAAGATGCCATTGTTTATGGTCAG
CCTCGGACACGAAGGCCCTGGAAGAAAATTCTCATCCTTGTGGAAGGAATATATAGCATG
GAGGGATCTATTGTTCGTCTTCCTGAAGTGATTGCCCTCAAGAAGAAATACAAGGCATAC
TTGTATCTGGATGAGGCTCACAGCATTGGCGCCCTGGGCCCCACAGGCCGGGGTGTGGTG
GAGTACTTTGGCCTGGATCCCGAGGATGTGGATGTTATGATGGGAACGTTCACAAAGAGT
TTTGGTGCTTCTGGAGGATATATTGGAGGCAAGAAGGAGCTGATAGACTACCTGCGAACA
CATTCTCATAGTGCAGTGTATGCCACGTCATTGTCACCTCCTGTAGTGGAGCAGATCATC
ACCTCCATGAAGTGCATCATGGGGCAGGATGGCACCAGCCTTGGTAAAGAGTGTGTACAA
CAGTTAGCTGAAAACACCAGGTATTTCAGGAGACGCCTGAAAGAGATGGGCTTCATCATC
TATGGAAATGAAGACTCTCCAGTAGTGCCTTTGATGCTCTACATGCCTGCCAAAATTGGC
GCCTTTGGACGGGAGATGCTGAAGCGGAACATCGGTGTCGTTGTGGTTGGATTTCCTGCC
ACCCCAATTATTGAGTCCAGAGCCAGGTTTTGCCTGTCAGCAGCTCATACCAAAGAAATA
CTTGATACTGCTTTAAAGGAGATAGATGAAGTTGGGGACCTATTGCAGCTGAAGTATTCC
CGTCATCGGTTGGTACCTCTACTGGACAGGCCCTTTGACGAGACGACGTATGAAGAAACA
GAAGACTGA
GenBank Gene IDY08686
GeneCard IDNone
GenAtlas IDSPTLC2
HGNC IDHGNC:11278
Chromosome Location14
Locus14q24.3-q31
References
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  6. Nagiec MM, Lester RL, Dickson RC: Sphingolipid synthesis: identification and characterization of mammalian cDNAs encoding the Lcb2 subunit of serine palmitoyltransferase. Gene. 1996 Oct 24;177(1-2):237-41.[8921873 ]
  7. Takeda J, Yano H, Eng S, Zeng Y, Bell GI: A molecular inventory of human pancreatic islets: sequence analysis of 1000 cDNA clones. Hum Mol Genet. 1993 Nov;2(11):1793-8.[7506601 ]
  8. Hornemann T, Richard S, Rutti MF, Wei Y, von Eckardstein A: Cloning and initial characterization of a new subunit for mammalian serine-palmitoyltransferase. J Biol Chem. 2006 Dec 8;281(49):37275-81. Epub 2006 Oct 4.[17023427 ]
  9. Rotthier A, Auer-Grumbach M, Janssens K, Baets J, Penno A, Almeida-Souza L, Van Hoof K, Jacobs A, De Vriendt E, Schlotter-Weigel B, Loscher W, Vondracek P, Seeman P, De Jonghe P, Van Dijck P, Jordanova A, Hornemann T, Timmerman V: Mutations in the SPTLC2 subunit of serine palmitoyltransferase cause hereditary sensory and autonomic neuropathy type I. Am J Hum Genet. 2010 Oct 8;87(4):513-22. doi: 10.1016/j.ajhg.2010.09.010.[20920666 ]
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