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Q5R9T5

- SPTC1_PONAB

UniProt

Q5R9T5 - SPTC1_PONAB

Protein

Serine palmitoyltransferase 1

Gene

SPTLC1

Organism
Pongo abelii (Sumatran orangutan) (Pongo pygmaeus abelii)
Status
Reviewed - Annotation score: 3 out of 5- Experimental evidence at transcript leveli
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    • History
      Entry version 67 (01 Oct 2014)
      Sequence version 1 (21 Dec 2004)
      Previous versions | rss
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    Functioni

    Serine palmitoyltransferase (SPT). The heterodimer formed with SPTLC2 or SPTLC3 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-SPTLC3-SPTSSA isozyme uses both C14-CoA and C16-CoA as substrates. The SPTLC1-SPTLC2-SPTSSB complex displays a strong preference for C18-CoA substrate, while the SPTLC1-SPTLC3-SPTSSB isozyme has the ability to use a broader range of acyl-CoAs By similarity.By similarity

    Catalytic activityi

    Palmitoyl-CoA + L-serine = CoA + 3-dehydro-D-sphinganine + CO2.

    Cofactori

    Pyridoxal phosphate.By similarity

    Pathwayi

    GO - Molecular functioni

    1. pyridoxal phosphate binding Source: InterPro
    2. serine C-palmitoyltransferase activity Source: UniProtKB-EC

    GO - Biological processi

    1. biosynthetic process Source: InterPro
    2. sphingolipid metabolic process Source: UniProtKB-UniPathway

    Keywords - Molecular functioni

    Acyltransferase, Transferase

    Keywords - Biological processi

    Lipid metabolism, Sphingolipid metabolism

    Keywords - Ligandi

    Pyridoxal phosphate

    Enzyme and pathway databases

    UniPathwayiUPA00222.

    Names & Taxonomyi

    Protein namesi
    Recommended name:
    Serine palmitoyltransferase 1 (EC:2.3.1.50)
    Alternative name(s):
    Long chain base biosynthesis protein 1
    Short name:
    LCB 1
    Serine-palmitoyl-CoA transferase 1
    Short name:
    SPT 1
    Short name:
    SPT1
    Gene namesi
    Name:SPTLC1
    OrganismiPongo abelii (Sumatran orangutan) (Pongo pygmaeus abelii)
    Taxonomic identifieri9601 [NCBI]
    Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniHominidaePongo
    ProteomesiUP000001595: Unplaced

    Subcellular locationi

    GO - Cellular componenti

    1. integral component of membrane Source: UniProtKB-KW
    2. SPOTS complex Source: UniProtKB

    Keywords - Cellular componenti

    Endoplasmic reticulum, Membrane

    PTM / Processingi

    Molecule processing

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Chaini1 – 473473Serine palmitoyltransferase 1PRO_0000327869Add
    BLAST

    Amino acid modifications

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Modified residuei164 – 1641Phosphotyrosine; by ABLBy similarity

    Post-translational modificationi

    Phosphorylation at Tyr-164 inhibits activity and promotes cell survival.By similarity

    Keywords - PTMi

    Phosphoprotein

    Interactioni

    Subunit structurei

    Heterodimer with SPTLC2 or SPTLC3. Component of the serine palmitoyltransferase (SPT) complex, composed of SPTLC1, either SPTLC2 or SPTLC3, and either SPTSSA or SPTSSB. Interacts with SPTSSA and SPTSSB; the interaction is direct. Interacts with ORMDL3 By similarity.By similarity

    Structurei

    3D structure databases

    ProteinModelPortaliQ5R9T5.
    ModBaseiSearch...
    MobiDBiSearch...

    Transmembrane

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Transmembranei16 – 3621HelicalSequence AnalysisAdd
    BLAST

    Family & Domainsi

    Sequence similaritiesi

    Keywords - Domaini

    Transmembrane, Transmembrane helix

    Phylogenomic databases

    HOGENOMiHOG000216602.
    HOVERGENiHBG003992.
    InParanoidiQ5R793.
    KOiK00654.

    Family and domain databases

    Gene3Di3.40.640.10. 1 hit.
    3.90.1150.10. 1 hit.
    InterProiIPR004839. Aminotransferase_I/II.
    IPR015424. PyrdxlP-dep_Trfase.
    IPR015421. PyrdxlP-dep_Trfase_major_sub1.
    IPR015422. PyrdxlP-dep_Trfase_major_sub2.
    [Graphical view]
    PfamiPF00155. Aminotran_1_2. 1 hit.
    [Graphical view]
    SUPFAMiSSF53383. SSF53383. 1 hit.

    Sequencei

    Sequence statusi: Complete.

    Q5R9T5-1 [UniParc]FASTAAdd to Basket

    « Hide

    MATATEQWVL VEMVQALYEA PAYHLILEGI LILWIIRLLF SKTYKLQERS    50
    DLTVKEKEEL IEEWQPEPLV PLVPKDHPAL NYNIVSGPPS HKIVVNGKEC 100
    INFASFNFLG LLDNPRVKAA ALASLKKYGV GTCGPRGFYG TFDVHLDLED 150
    RLAKFMKTEE AIIYSYGFAT IASAIPAYSK RGDIVFVDRA ACFAIQKGLQ 200
    ASRSDIKLFK HNDMADLERL LKEQEIEDQK NPRKARVTRR FIVVEGLYMN 250
    TGTICPLPEL VKLKYKYKAR IFLEESLSFG VLGEHGRGVT EHYGINIDDI 300
    DLISANMENA LASIGGFCCG RSFVIDHQRL SGQGYCFSAS LPPLLAAAAI 350
    EALNIMEENP GIFAVLKEKC RQIHKALQGI SGLKVVGEPL SPAFHLQLEE 400
    STGSREQDVR LLQEIVDQCM NRSIALTQAR YLEKEEKCLP PPSIRVVVTV 450
    EQTEEELDRA ASTIKEVAQA VLL 473
    Length:473
    Mass (Da):52,867
    Last modified:December 21, 2004 - v1
    Checksum:i64BCBB758A79B632
    GO

    Experimental Info

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Sequence conflicti158 – 1581T → I in CAH92367. 1 PublicationCurated

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    CR859297 mRNA. Translation: CAH91475.1.
    CR860225 mRNA. Translation: CAH92367.1.
    RefSeqiNP_001126393.1. NM_001132921.1.

    Genome annotation databases

    GeneIDi100173375.
    KEGGipon:100173375.

    Cross-referencesi

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    CR859297 mRNA. Translation: CAH91475.1 .
    CR860225 mRNA. Translation: CAH92367.1 .
    RefSeqi NP_001126393.1. NM_001132921.1.

    3D structure databases

    ProteinModelPortali Q5R9T5.
    ModBasei Search...
    MobiDBi Search...

    Protocols and materials databases

    Structural Biology Knowledgebase Search...

    Genome annotation databases

    GeneIDi 100173375.
    KEGGi pon:100173375.

    Organism-specific databases

    CTDi 10558.

    Phylogenomic databases

    HOGENOMi HOG000216602.
    HOVERGENi HBG003992.
    InParanoidi Q5R793.
    KOi K00654.

    Enzyme and pathway databases

    UniPathwayi UPA00222 .

    Family and domain databases

    Gene3Di 3.40.640.10. 1 hit.
    3.90.1150.10. 1 hit.
    InterProi IPR004839. Aminotransferase_I/II.
    IPR015424. PyrdxlP-dep_Trfase.
    IPR015421. PyrdxlP-dep_Trfase_major_sub1.
    IPR015422. PyrdxlP-dep_Trfase_major_sub2.
    [Graphical view ]
    Pfami PF00155. Aminotran_1_2. 1 hit.
    [Graphical view ]
    SUPFAMi SSF53383. SSF53383. 1 hit.
    ProtoNeti Search...

    Publicationsi

    1. The German cDNA consortium
      Submitted (NOV-2004) to the EMBL/GenBank/DDBJ databases
      Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
      Tissue: Heart and Kidney.

    Entry informationi

    Entry nameiSPTC1_PONAB
    AccessioniPrimary (citable) accession number: Q5R9T5
    Secondary accession number(s): Q5R793
    Entry historyi
    Integrated into UniProtKB/Swiss-Prot: April 8, 2008
    Last sequence update: December 21, 2004
    Last modified: October 1, 2014
    This is version 67 of the entry and version 1 of the sequence. [Complete history]
    Entry statusiReviewed (UniProtKB/Swiss-Prot)
    Annotation programChordata Protein Annotation Program

    Miscellaneousi

    Keywords - Technical termi

    Complete proteome, Reference proteome

    Documents

    1. PATHWAY comments
      Index of metabolic and biosynthesis pathways
    2. SIMILARITY comments
      Index of protein domains and families

    External Data

    Dasty 3