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Entry version 137 (10 Feb 2021)
Sequence version 1 (01 May 1997)
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Protein

Serine palmitoyltransferase 1

Gene

sptl-1

Organism
Caenorhabditis elegans
Status
Reviewed-Annotation score:

Annotation score:3 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Protein inferred from homologyi <p>This indicates the type of evidence that supports the existence of the protein. Note that the 'protein existence' evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

Component of the serine palmitoyltransferase (SPT) that catalyzes the first committed step in sphingolipid biosynthesis, which is the condensation of an acyl-CoA species and L-serine. The catalytic core is composed of a heterodimer of sptl-1 and sptl-2 or sptl-1 and sptl-3 (By similarity).

Required for the specification of abicobasal polarity and development of the gut lumen.

By similarity1 Publication

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes the catalytic activity of an enzyme, i.e. a chemical reaction that the enzyme catalyzes.<p><a href='/help/catalytic_activity' target='_top'>More...</a></p>Catalytic activityi

<p>This subsection of the 'Function' section provides information relevant to cofactors. A cofactor is any non-protein substance required for a protein to be catalytically active. Some cofactors are inorganic, such as the metal atoms zinc, iron, and copper in various oxidation states. Others, such as most vitamins, are organic.<p><a href='/help/cofactor' target='_top'>More...</a></p>Cofactori

pyridoxal 5'-phosphateBy similarity

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">'Function'</a> section describes the metabolic pathway(s) associated with a protein.<p><a href='/help/pathway' target='_top'>More...</a></p>Pathwayi: sphingolipid metabolism

This protein is involved in the pathway sphingolipid metabolism, which is part of Lipid metabolism.
View all proteins of this organism that are known to be involved in the pathway sphingolipid metabolism and in Lipid metabolism.

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

GO - Biological processi

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Molecular functionAcyltransferase, Transferase
Biological processLipid metabolism, Sphingolipid metabolism
LigandPyridoxal phosphate

Enzyme and pathway databases

UniPathway: a resource for the exploration and annotation of metabolic pathways

More...
UniPathwayi
UPA00222

Chemistry databases

SwissLipids knowledge resource for lipid biology

More...
SwissLipidsi
SLP:000000194

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>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
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: 'Name', 'Synonyms', 'Ordered locus names' and 'ORF names'.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:sptl-1
ORF Names:C23H3.4
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiCaenorhabditis elegans
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the 'taxonomic identifier' or 'taxid'.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri6239 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiEukaryotaMetazoaEcdysozoaNematodaChromadoreaRhabditidaRhabditinaRhabditomorphaRhabditoideaRhabditidaePeloderinaeCaenorhabditis
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000001940 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes%5Fmanual">proteome</a> can consist of several components.<br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Chromosome II

Organism-specific databases

WormBase

More...
WormBasei
C23H3.4a ; CE08323 ; WBGene00016020 ; sptl-1
C23H3.4b ; CE37749 ; WBGene00016020 ; sptl-1

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00004212711 – 458Serine palmitoyltransferase 1Add BLAST458

Proteomic databases

Encyclopedia of Proteome Dynamics

More...
EPDi
P91079

PaxDb, a database of protein abundance averages across all three domains of life

More...
PaxDbi
P91079

PeptideAtlas

More...
PeptideAtlasi
P91079

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

Gene expression databases

Bgee dataBase for Gene Expression Evolution

More...
Bgeei
WBGene00016020, Expressed in adult organism and 5 other tissues

ExpressionAtlas, Differential and Baseline Expression

More...
ExpressionAtlasi
P91079, baseline and differential

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction%5Fsection">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function%5Fsection">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Heterodimer of sptl-1/sptl-2 or sptl-1/sptl-3.

By similarity

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGRID)

More...
BioGRIDi
38769, 5 interactors

Protein interaction database and analysis system

More...
IntActi
P91079, 1 interactor

STRING: functional protein association networks

More...
STRINGi
6239.C23H3.4a.2

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

3D structure databases

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...
SMRi
P91079

Database of comparative protein structure models

More...
ModBasei
Search...

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG1358, Eukaryota

Ensembl GeneTree

More...
GeneTreei
ENSGT00550000074872

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P91079

Identification of Orthologs from Complete Genome Data

More...
OMAi
CVGSHFI

Database of Orthologous Groups

More...
OrthoDBi
438936at2759

Database for complete collections of gene phylogenies

More...
PhylomeDBi
P91079

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
3.40.640.10, 1 hit
3.90.1150.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR004839, Aminotransferase_I/II
IPR015424, PyrdxlP-dep_Trfase
IPR015422, PyrdxlP-dep_Trfase_dom1
IPR015421, PyrdxlP-dep_Trfase_major

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00155, Aminotran_1_2, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF53383, SSF53383, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence%5Flength">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequence (1+)i

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

This entry has 1 described isoform and 1 potential isoform that is computationally mapped.Show allAlign All

P91079-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MGFLPDSWHF YIETLLVALL AYVVMRNRSK RQQEKLSKKL TERQKDELIA
60 70 80 90 100
DWTPEPLVPE TPQDHPVLNP KYADGKMTKD VSIDGEKYLN MASTNFLSFI
110 120 130 140 150
GVKRIEDRAK QTIFKYGVGS CGPRGFYGTV DVHLDLEKEL AKFMGCEEAV
160 170 180 190 200
LYSYGFATVS SAIPAYAKKG DVIFVDEGVN FAIQKGLQAS RSRVEYFKHN
210 220 230 240 250
DMEHLERLLL EQEQRDKKDP KKAKSVRRFI VVEGLYVNYA DLCPLPKIIE
260 270 280 290 300
FKWRFKVRVF IDESWSFGVI GKTGRGVTEH FNVPMEDVDM VMASLENALA
310 320 330 340 350
STGGFCVGRS YVVGHQRLSG LGYCFSASLP PLLATAASEA ISIIDEEPSR
360 370 380 390 400
VQKVTEMAIN GQKKLQDALS GSKFSLQGCP ESPMKHIYYN GEDEEKQLDT
410 420 430 440 450
FVETVFTKNH LLLTRARYLD KDELFKIRPS IRVMFQHDLT EEEIQRAVDA

IRVVAHKF
Length:458
Mass (Da):52,085
Last modified:May 1, 1997 - v1
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:i2F56AC94DFFABF91
GO

<p>In eukaryotic reference proteomes, unreviewed entries that are likely to belong to the same gene are computationally mapped, based on gene identifiers from Ensembl, EnsemblGenomes and model organism databases.<p><a href='/help/gene_centric_isoform_mapping' target='_top'>More...</a></p>Computationally mapped potential isoform sequencesi

There is 1 potential isoform mapped to this entry.BLASTAlignShow allAdd to basket
EntryEntry nameProtein names
Gene namesLengthAnnotation
A0A0K3ARH7A0A0K3ARH7_CAEEL
Aminotran_1_2 domain-containing pro...
sptl-1 C23H3.4, CELE_C23H3.4
174Annotation score:

Annotation score:1 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

More...
GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
FO080632 Genomic DNA Translation: CCD65323.1
FO080632 Genomic DNA Translation: CCD65324.1

Protein sequence database of the Protein Information Resource

More...
PIRi
T25557

NCBI Reference Sequences

More...
RefSeqi
NP_001021978.1, NM_001026807.2
NP_001021979.1, NM_001026808.2

Genome annotation databases

Ensembl metazoan genome annotation project

More...
EnsemblMetazoai
C23H3.4a.1; C23H3.4a.1; WBGene00016020
C23H3.4a.2; C23H3.4a.2; WBGene00016020
C23H3.4b.1; C23H3.4b.1; WBGene00016020
C23H3.4b.2; C23H3.4b.2; WBGene00016020
C23H3.4b.3; C23H3.4b.3; WBGene00016020

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
173389

UCSC genome browser

More...
UCSCi
C23H3.4a.2, c. elegans

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
FO080632 Genomic DNA Translation: CCD65323.1
FO080632 Genomic DNA Translation: CCD65324.1
PIRiT25557
RefSeqiNP_001021978.1, NM_001026807.2
NP_001021979.1, NM_001026808.2

3D structure databases

SMRiP91079
ModBaseiSearch...

Protein-protein interaction databases

BioGRIDi38769, 5 interactors
IntActiP91079, 1 interactor
STRINGi6239.C23H3.4a.2

Chemistry databases

SwissLipidsiSLP:000000194

Proteomic databases

EPDiP91079
PaxDbiP91079
PeptideAtlasiP91079

Genome annotation databases

EnsemblMetazoaiC23H3.4a.1; C23H3.4a.1; WBGene00016020
C23H3.4a.2; C23H3.4a.2; WBGene00016020
C23H3.4b.1; C23H3.4b.1; WBGene00016020
C23H3.4b.2; C23H3.4b.2; WBGene00016020
C23H3.4b.3; C23H3.4b.3; WBGene00016020
GeneIDi173389
UCSCiC23H3.4a.2, c. elegans

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
173389
WormBaseiC23H3.4a ; CE08323 ; WBGene00016020 ; sptl-1
C23H3.4b ; CE37749 ; WBGene00016020 ; sptl-1

Phylogenomic databases

eggNOGiKOG1358, Eukaryota
GeneTreeiENSGT00550000074872
InParanoidiP91079
OMAiCVGSHFI
OrthoDBi438936at2759
PhylomeDBiP91079

Enzyme and pathway databases

UniPathwayiUPA00222

Miscellaneous databases

Protein Ontology

More...
PROi
PR:P91079

Gene expression databases

BgeeiWBGene00016020, Expressed in adult organism and 5 other tissues
ExpressionAtlasiP91079, baseline and differential

Family and domain databases

Gene3Di3.40.640.10, 1 hit
3.90.1150.10, 1 hit
InterProiView protein in InterPro
IPR004839, Aminotransferase_I/II
IPR015424, PyrdxlP-dep_Trfase
IPR015422, PyrdxlP-dep_Trfase_dom1
IPR015421, PyrdxlP-dep_Trfase_major
PfamiView protein in Pfam
PF00155, Aminotran_1_2, 1 hit
SUPFAMiSSF53383, SSF53383, 1 hit

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the 'Entry information' section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiSPTC1_CAEEL
<p>This subsection of the 'Entry information' section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called 'Primary (citable) accession number'.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: P91079
Secondary accession number(s): Q5R3Y5
<p>This subsection of the 'Entry information' section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification ('Last modified'). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: March 6, 2013
Last sequence update: May 1, 1997
Last modified: February 10, 2021
This is version 137 of the entry and version 1 of the sequence. See complete history.
<p>This subsection of the 'Entry information' section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programCaenorhabditis annotation project

<p>This section contains any relevant information that doesn't fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

Reference proteome

Documents

  1. Caenorhabditis elegans
    Caenorhabditis elegans: entries, gene names and cross-references to WormBase
  2. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  3. SIMILARITY comments
    Index of protein domains and families
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