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Entry version 120 (16 Oct 2019)
Sequence version 1 (11 Oct 2005)
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Protein

Pyruvate kinase

Gene

pyk-1

Organism
Caenorhabditis elegans
Status
Unreviewed-Annotation score:

Annotation score:2 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>
-Experimental evidence at protein leveli <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

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

This protein is involved in step 5 of the subpathway that synthesizes pyruvate from D-glyceraldehyde 3-phosphate.UniRule annotation
Proteins known to be involved in the 5 steps of the subpathway in this organism are:
  1. Glyceraldehyde-3-phosphate dehydrogenase 2 (gpd-2), Glyceraldehyde-3-phosphate dehydrogenase 4 (gpd-4), Glyceraldehyde-3-phosphate dehydrogenase 3 (gpd-3), Glyceraldehyde-3-phosphate dehydrogenase 1 (gpd-1)
  2. Probable phosphoglycerate kinase (pgk-1)
  3. 2,3-bisphosphoglycerate-independent phosphoglycerate mutase (ipgm-1)
  4. Enolase (enol-1)
  5. Pyruvate kinase (pyk-1), Pyruvate kinase (pyk-1), Pyruvate kinase (pyk-1), Pyruvate kinase (pyk-2), Pyruvate kinase (pyk-2), Pyruvate kinase (pyk-1), Pyruvate kinase (pyk-1), Pyruvate kinase (pyk-2)
This subpathway is part of the pathway glycolysis, which is itself part of Carbohydrate degradation.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes pyruvate from D-glyceraldehyde 3-phosphate, the pathway glycolysis and in Carbohydrate degradation.

<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 functionKinaseUniRule annotationImported, Transferase
Biological processGlycolysisUniRule annotation
LigandMagnesiumUniRule annotation, PyruvateImported

Enzyme and pathway databases

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

More...
UniPathwayi
UPA00109;UER00188

<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_and_taxonomy_section">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:
Pyruvate kinaseUniRule annotation (EC:2.7.1.40UniRule annotation)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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:pyk-1Imported
ORF Names:CELE_F25H5.3Imported, F25H5.3Imported
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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 elegansImported
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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_and_taxonomy_section">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_and_taxonomy_section">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_manual">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 I

Organism-specific databases

WormBase

More...
WormBasei
F25H5.3d ; CE37832 ; WBGene00009126 ; pyk-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

Proteomic databases

Encyclopedia of Proteome Dynamics

More...
EPDi
Q3S1I8

PeptideAtlas

More...
PeptideAtlasi
Q3S1I8

2D gel databases

The World-2DPAGE database

More...
World-2DPAGEi
0020:Q3S1I8

<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
WBGene00009126 Expressed in 5 organ(s), highest expression level in adult organism

ExpressionAtlas, Differential and Baseline Expression

More...
ExpressionAtlasi
Q3S1I8 baseline and differential

<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
Q3S1I8

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

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/family_and_domains_section">Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini74 – 421PKInterPro annotationAdd BLAST348
Domaini438 – 555PK_CInterPro annotationAdd BLAST118

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Family and Domains’ section describes a region of interest that cannot be described in other subsections.<p><a href='/help/region' target='_top'>More...</a></p>Regioni1 – 28DisorderedSequence analysisAdd BLAST28

Compositional bias

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Family and Domains’ section describes the position of regions of compositional bias within the protein and the particular amino acids that are over-represented within those regions.<p><a href='/help/compbias' target='_top'>More...</a></p>Compositional biasi1 – 20PolarSequence analysisAdd BLAST20

<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

Belongs to the pyruvate kinase family.UniRule annotation

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
KOG2323 Eukaryota
COG0469 LUCA

Ensembl GeneTree

More...
GeneTreei
ENSGT00390000008859

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000021559

Database of Orthologous Groups

More...
OrthoDBi
933620at2759

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
2.40.33.10, 1 hit
3.20.20.60, 1 hit
3.40.1380.20, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR001697 Pyr_Knase
IPR015813 Pyrv/PenolPyrv_Kinase-like_dom
IPR040442 Pyrv_Kinase-like_dom_sf
IPR011037 Pyrv_Knase-like_insert_dom_sf
IPR018209 Pyrv_Knase_AS
IPR015793 Pyrv_Knase_brl
IPR015795 Pyrv_Knase_C
IPR036918 Pyrv_Knase_C_sf
IPR015806 Pyrv_Knase_insert_dom_sf

The PANTHER Classification System

More...
PANTHERi
PTHR11817 PTHR11817, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00224 PK, 1 hit
PF02887 PK_C, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR01050 PYRUVTKNASE

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF50800 SSF50800, 1 hit
SSF51621 SSF51621, 1 hit
SSF52935 SSF52935, 1 hit

TIGRFAMs; a protein family database

More...
TIGRFAMsi
TIGR01064 pyruv_kin, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00110 PYRUVATE_KINASE, 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_length">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_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">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 4 potential isoforms that are computationally mapped.Show allAlign All

Q3S1I8-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MASSQELAEA GDTINEVKAS SASGRGRLAR RMTIEEEHAG DYFKQEQKLA
60 70 80 90 100
AVPATTHMEH LCRLDIREAP HLVRQTGIIC TIGPACASVE MLQKLILNGM
110 120 130 140 150
NIARLNFSHG SHEYHAGTIA NVREAADSFS DKRVIGIALD TKGPEIRTGL
160 170 180 190 200
LAGGASAEIE LARGASIRLT TDPHFSESGT AVNLFVDYKN IAKVLSVGSR
210 220 230 240 250
VYIDDGLISL IVEELQTDAV ICSVENGGML GSRKGVNLPG TIVDLPAVSE
260 270 280 290 300
KDCKDLQFGV EQGVDIIFAS FIRNAEGIRT IRKVLGEKGK KIKIIAKIEN
310 320 330 340 350
QEGVDNADEI ISESDGVMVA RGDLGIEIPA EKVFLAQKML ISKCNRAGKP
360 370 380 390 400
VICATQMLES MVHKPRPTRA EGSDVANAVL DGADCVMLSG ETAKGEYPVD
410 420 430 440 450
ALKIMHYICK EAEAAVYHRR LFDELLQNTQ KPTDMSHTIA IAATSAAASC
460 470 480 490 500
HASAILLITT TGRSAIQCSR YKPAVPILTI SRDVAVCRQL HLYRGVFPVH
510 520 530 540 550
YPAERAADWP TDVDNRINHA IAIGKDRGFI HKGDFLVVVT GWRQGAGATN

TLRIITAE
Length:558
Mass (Da):60,222
Last modified:October 11, 2005 - 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:i091DC425804AEAB8
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 are 4 potential isoforms mapped to this entry.BLASTAlignShow allAdd to basket
EntryEntry nameProtein names
Gene namesLengthAnnotation
O17836O17836_CAEEL
Pyruvate kinase
pyk-1 CELE_F25H5.3, F25H5.3
562Annotation score:

Annotation score:2 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>
O17835O17835_CAEEL
Pyruvate kinase
pyk-1 CELE_F25H5.3, F25H5.3
600Annotation score:

Annotation score:2 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>
B7WNA0B7WNA0_CAEEL
Pyruvate kinase
pyk-1 CELE_F25H5.3, F25H5.3
913Annotation score:

Annotation score:2 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>
Q7JL40Q7JL40_CAEEL
Pyruvate kinase
pyk-1 CELE_F25H5.3, F25H5.3
531Annotation score:

Annotation score:2 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
BX284601 Genomic DNA Translation: CAJ30227.1

NCBI Reference Sequences

More...
RefSeqi
NP_001021412.1, NM_001026241.3

Genome annotation databases

Ensembl metazoan genome annotation project

More...
EnsemblMetazoai
F25H5.3d.1; F25H5.3d.1; WBGene00009126

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
172744

UCSC genome browser

More...
UCSCi
F25H5.3d 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
BX284601 Genomic DNA Translation: CAJ30227.1
RefSeqiNP_001021412.1, NM_001026241.3

3D structure databases

SMRiQ3S1I8
ModBaseiSearch...

2D gel databases

World-2DPAGEi0020:Q3S1I8

Proteomic databases

EPDiQ3S1I8
PeptideAtlasiQ3S1I8

Genome annotation databases

EnsemblMetazoaiF25H5.3d.1; F25H5.3d.1; WBGene00009126
GeneIDi172744
UCSCiF25H5.3d c. elegans

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
172744
WormBaseiF25H5.3d ; CE37832 ; WBGene00009126 ; pyk-1

Phylogenomic databases

eggNOGiKOG2323 Eukaryota
COG0469 LUCA
GeneTreeiENSGT00390000008859
HOGENOMiHOG000021559
OrthoDBi933620at2759

Enzyme and pathway databases

UniPathwayiUPA00109;UER00188

Gene expression databases

BgeeiWBGene00009126 Expressed in 5 organ(s), highest expression level in adult organism
ExpressionAtlasiQ3S1I8 baseline and differential

Family and domain databases

Gene3Di2.40.33.10, 1 hit
3.20.20.60, 1 hit
3.40.1380.20, 1 hit
InterProiView protein in InterPro
IPR001697 Pyr_Knase
IPR015813 Pyrv/PenolPyrv_Kinase-like_dom
IPR040442 Pyrv_Kinase-like_dom_sf
IPR011037 Pyrv_Knase-like_insert_dom_sf
IPR018209 Pyrv_Knase_AS
IPR015793 Pyrv_Knase_brl
IPR015795 Pyrv_Knase_C
IPR036918 Pyrv_Knase_C_sf
IPR015806 Pyrv_Knase_insert_dom_sf
PANTHERiPTHR11817 PTHR11817, 1 hit
PfamiView protein in Pfam
PF00224 PK, 1 hit
PF02887 PK_C, 1 hit
PRINTSiPR01050 PYRUVTKNASE
SUPFAMiSSF50800 SSF50800, 1 hit
SSF51621 SSF51621, 1 hit
SSF52935 SSF52935, 1 hit
TIGRFAMsiTIGR01064 pyruv_kin, 1 hit
PROSITEiView protein in PROSITE
PS00110 PYRUVATE_KINASE, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

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 nameiQ3S1I8_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: Q3S1I8
<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_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/TrEMBL: October 11, 2005
Last sequence update: October 11, 2005
Last modified: October 16, 2019
This is version 120 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 statusiUnreviewed (UniProtKB/TrEMBL)

<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

Complete proteome, Proteomics identificationCombined sources, Reference proteomeImported
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health

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