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Identification
HMDB Protein ID HMDBP00888
Secondary Accession Numbers
  • 6170
  • HMDBP04692
Name Serine palmitoyltransferase 2
Synonyms
  1. LCB 2
  2. LCB2a
  3. Long chain base biosynthesis protein 2
  4. Long chain base biosynthesis protein 2a
  5. SPT 2
  6. Serine-palmitoyl-CoA transferase 2
Gene Name SPTLC2
Protein Type Enzyme
Biological Properties
General Function Involved in transferase activity
Specific Function Serine 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.
Pathways
  • Fabry disease
  • Gaucher Disease
  • Globoid Cell Leukodystrophy
  • Krabbe disease
  • Metachromatic Leukodystrophy (MLD)
  • sphingolipid metabolism
  • Starch and sucrose metabolism
Reactions
Palmityl-CoA + L-Serine → Coenzyme A + 3-Dehydrosphinganine + CO(2) details
Palmityl-CoA + L-Serine → 3-Dehydrosphinganine + Coenzyme A + Carbon dioxide details
GO Classification
Biological Process
small molecule metabolic process
phospholipid metabolic process
sphingosine biosynthetic process
sphingolipid biosynthetic process
sphinganine biosynthetic process
sphingomyelin biosynthetic process
Cellular Component
mitochondrion
serine C-palmitoyltransferase complex
integral to membrane
Function
binding
catalytic activity
transferase activity
transferase activity, transferring nitrogenous groups
cofactor binding
pyridoxal phosphate binding
Molecular Function
serine C-palmitoyltransferase activity
pyridoxal phosphate binding
Process
metabolic process
biosynthetic process
Cellular Location
  1. Endoplasmic reticulum membrane
  2. Single-pass membrane protein
Gene Properties
Chromosome Location 14
Locus 14q24.3
SNPs SPTLC2
Gene Sequence
>1689 bp
ATGCGGCCGGAGCCCGGAGGCTGCTGCTGCCGCCGCACGGTGCGGGCGAATGGCTGCGTG
GCGAACGGGGAAGTACGGAACGGGTACGTGAGGAGCAGCGCTGCAGCCGCAGCCGCAGCC
GCCGCCGGCCAGATCCATCATGTTACACAAAATGGAGGACTATATAAAAGACCGTTTAAT
GAAGCTTTTGAAGAAACACCAATGCTGGTTGCTGTGCTCACGTATGTGGGGTATGGCGTA
CTCACCCTCTTTGGATATCTTCGAGATTTCTTGAGGTATTGGAGAATTGAAAAGTGTCAC
CATGCAACAGAAAGAGAAGAACAAAAGGACTTTGTGTCATTGTATCAAGATTTTGAAAAC
TTTTATACAAGGAATCTGTACATGAGGATAAGAGACAACTGGAATCGGCCAATCTGTAGT
GTGCCTGGAGCCAGGGTGGACATCATGGAGAGACAGTCTCATGATTATAACTGGTCCTTC
AAGTATACAGGGAATATAATAAAGGGTGTTATAAACATGGGTTCCTACAACTATCTTGGA
TTTGCACGGAATACTGGATCATGTCAAGAAGCAGCCGCCAAAGTCCTTGAGGAGTATGGA
GCTGGAGTGTGCAGTACTCGGCAGGAAATTGGAAACCTGGACAAGCATGAAGAACTAGAG
GAGCTTGTAGCAAGGTTCTTAGGAGTAGAAGCTGCTATGGCGTATGGCATGGGATTTGCA
ACGAATTCAATGAACATTCCTGCTCTTGTTGGCAAAGGTTGCCTGATTCTGAGTGATGAA
CTGAACCATGCATCACTGGTTCTGGGAGCCAGACTGTCAGGAGCAACCATTAGAATCTTC
AAACACAACAATATGCAAAGCCTAGAGAAGCTATTGAAAGATGCCATTGTTTATGGTCAG
CCTCGGACACGAAGGCCCTGGAAGAAAATTCTCATCCTTGTGGAAGGAATATATAGCATG
GAGGGATCTATTGTTCGTCTTCCTGAAGTGATTGCCCTCAAGAAGAAATACAAGGCATAC
TTGTATCTGGATGAGGCTCACAGCATTGGCGCCCTGGGCCCCACAGGCCGGGGTGTGGTG
GAGTACTTTGGCCTGGATCCCGAGGATGTGGATGTTATGATGGGAACGTTCACAAAGAGT
TTTGGTGCTTCTGGAGGATATATTGGAGGCAAGAAGGAGCTGATAGACTACCTGCGAACA
CATTCTCATAGTGCAGTGTATGCCACGTCATTGTCACCTCCTGTAGTGGAGCAGATCATC
ACCTCCATGAAGTGCATCATGGGGCAGGATGGCACCAGCCTTGGTAAAGAGTGTGTACAA
CAGTTAGCTGAAAACACCAGGTATTTCAGGAGACGCCTGAAAGAGATGGGCTTCATCATC
TATGGAAATGAAGACTCTCCAGTAGTGCCTTTGATGCTCTACATGCCTGCCAAAATTGGC
GCCTTTGGACGGGAGATGCTGAAGCGGAACATCGGTGTCGTTGTGGTTGGATTTCCTGCC
ACCCCAATTATTGAGTCCAGAGCCAGGTTTTGCCTGTCAGCAGCTCATACCAAAGAAATA
CTTGATACTGCTTTAAAGGAGATAGATGAAGTTGGGGACCTATTGCAGCTGAAGTATTCC
CGTCATCGGTTGGTACCTCTACTGGACAGGCCCTTTGACGAGACGACGTATGAAGAAACA
GAAGACTGA
Protein Properties
Number of Residues 562
Molecular Weight 62923.765
Theoretical pI 7.785
Pfam Domain Function
Signals Not Available
Transmembrane Regions Not Available
Protein Sequence
>Serine palmitoyltransferase 2
MRPEPGGCCCRRTVRANGCVANGEVRNGYVRSSAAAAAAAAAGQIHHVTQNGGLYKRPFN
EAFEETPMLVAVLTYVGYGVLTLFGYLRDFLRYWRIEKCHHATEREEQKDFVSLYQDFEN
FYTRNLYMRIRDNWNRPICSVPGARVDIMERQSHDYNWSFKYTGNIIKGVINMGSYNYLG
FARNTGSCQEAAAKVLEEYGAGVCSTRQEIGNLDKHEELEELVARFLGVEAAMAYGMGFA
TNSMNIPALVGKGCLILSDELNHASLVLGARLSGATIRIFKHNNMQSLEKLLKDAIVYGQ
PRTRRPWKKILILVEGIYSMEGSIVRLPEVIALKKKYKAYLYLDEAHSIGALGPTGRGVV
EYFGLDPEDVDVMMGTFTKSFGASGGYIGGKKELIDYLRTHSHSAVYATSLSPPVVEQII
TSMKCIMGQDGTSLGKECVQQLAENTRYFRRRLKEMGFIIYGNEDSPVVPLMLYMPAKIG
AFGREMLKRNIGVVVVGFPATPIIESRARFCLSAAHTKEILDTALKEIDEVGDLLQLKYS
RHRLVPLLDRPFDETTYEETED
GenBank ID Protein 2564249
UniProtKB/Swiss-Prot ID O15270
UniProtKB/Swiss-Prot Entry Name SPTC2_HUMAN
PDB IDs Not Available
GenBank Gene ID Y08686
GeneCard ID SPTLC2
GenAtlas ID SPTLC2
HGNC ID HGNC:11278
References
General References
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  5. Weiss B, Stoffel W: Human and murine serine-palmitoyl-CoA transferase--cloning, expression and characterization of the key enzyme in sphingolipid synthesis. Eur J Biochem. 1997 Oct 1;249(1):239-47. [PubMed:9363775 ]
  6. 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. [PubMed:17023427 ]
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  8. 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. [PubMed:8921873 ]
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