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EIF2AK3
HPA
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  • EIF2AK3
PROTEIN SUMMARY GENE INFORMATION RNA DATA ANTIBODY DATA
GENERAL INFORMATIONi

General description of the gene and the encoded protein(s) using information from HGNC and Ensembl, as well as predictions made by the Human Protein Atlas project.

Gene namei

Official gene symbol, which is typically a short form of the gene name, according to HGNC.

EIF2AK3
Synonyms PEK, PERK
Gene descriptioni

Full gene name according to HGNC.

Eukaryotic translation initiation factor 2 alpha kinase 3
Protein classi

Assigned HPA protein class(es) for the encoded protein(s).

Disease related genes
Enzymes
Human disease related genes
Potential drug targets
Predicted locationi

All transcripts of all genes have been analyzed regarding the location(s) of corresponding protein based on prediction methods for signal peptides and transmembrane regions.

  • Genes with at least one transcript predicted to encode a secreted protein, according to prediction methods or to UniProt location data, have been further annotated and classified with the aim to determine if the corresponding protein(s) are secreted or actually retained in intracellular locations or membrane-attached.

  • Remaining genes, with no transcript predicted to encode a secreted protein, will be assigned the prediction-based location(s).

The annotated location overrules the predicted location, so that a gene encoding a predicted secreted protein that has been annotated as intracellular will have intracellular as the final location.

Membrane, Intracellular
Protein evidence Evidence at protein level (all genes)
GENE INFORMATIONi

Gene information from Ensembl and Entrez, as well as links to available gene identifiers are displayed here. Information was retrieved from Ensembl if not indicated otherwise.

Chromosome 2
Cytoband p11.2
Chromosome location (bp) 88556741 - 88691518
Number of transcriptsi

Number of protein-coding transcripts from the gene as defined by Ensembl.

5
Ensembl ENSG00000172071 (version 109)
Entrez gene 9451
HGNC HGNC:3255
UniProt Q9NZJ5 (UniProt - Evidence at protein level)
neXtProt NX_Q9NZJ5
GeneCards EIF2AK3
Antibodypedia EIF2AK3 antibodies


PROTEIN FUNCTION
Protein function (UniProt)i

Useful information about the protein provided by UniProt.

Metabolic-stress sensing protein kinase that phosphorylates the alpha subunit of eukaryotic translation initiation factor 2 (EIF2S1/eIF-2-alpha) in response to various stress conditions. Key activator of the integrated stress response (ISR) required for adaptation to various stress, such as unfolded protein response (UPR) and low amino acid availability (By similarity). EIF2S1/eIF-2-alpha phosphorylation in response to stress converts EIF2S1/eIF-2-alpha in a global protein synthesis inhibitor, leading to a global attenuation of cap-dependent translation, while concomitantly initiating the preferential translation of ISR-specific mRNAs, such as the transcriptional activators ATF4 and QRICH1, and hence allowing ATF4- and QRICH1-mediated reprogramming 1. Serves as a critical effector of unfolded protein response (UPR)-induced G1 growth arrest due to the loss of cyclin-D1 (CCND1). Involved in control of mitochondrial morphology and function (By similarity).... show less
Molecular function (UniProt)i

Keywords assigned by UniProt to proteins due to their particular molecular function.

Kinase, Serine/threonine-protein kinase, Transferase
Biological process (UniProt)i

Keywords assigned by UniProt to proteins because they are involved in a particular biological process.

Stress response, Translation regulation, Unfolded protein response
Ligand (UniProt)i

Keywords assigned by UniProt to proteins because they bind, are associated with, or whose activity is dependent of some molecule.

ATP-binding, Nucleotide-binding
Gene summary (Entrez)i

Useful information about the gene from Entrez

The protein encoded by this gene phosphorylates the alpha subunit of eukaryotic translation-initiation factor 2, leading to its inactivation, and thus to a rapid reduction of translational initiation and repression of global protein synthesis. This protein is thought to modulate mitochondrial function. It is a type I membrane protein located in the endoplasmic reticulum (ER), where it is induced by ER stress caused by malfolded proteins. Mutations in this gene are associated with Wolcott-Rallison syndrome. [provided by RefSeq, Sep 2015]... show less
PROTEIN INFORMATIONi

The protein information section displays alternative protein-coding transcripts (splice variants) encoded by this gene according to the Ensembl database.

The Splice variant identifier links to the Ensembl website protein summary for the selected splice variant. The data in the Swissprot and TrEMBL columns links to corresponding pages in the UniProt database.

The protein classes assigned to this protein are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.

The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide and number of predicted transmembrane region(s) according to in-house majority decision methods based on sets of predictors are also reported.
Splice variant SwissProt TrEMBL Protein class Gene ontology Length & mass Signal peptide
(predicted)
Transmembrane regions
(predicted)
EIF2AK3-201
ENSP00000307235
ENST00000303236
Q9NZJ5
[Direct mapping] Eukaryotic translation initiation factor 2-alpha kinase 3
Show all
Enzymes
   ENZYME proteins
   Transferases
   Kinases
Predicted membrane proteins
   Prediction method-based
   Membrane proteins predicted by MDM
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   Phobius predicted membrane proteins
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   2TM proteins predicted by MDM
Disease related genes
Potential drug targets
Human disease related genes
   Endocrine and metabolic diseases
   Diabetes
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Kim et al 2014)
Protein evidence (Ezkurdia et al 2014)
   DeepTMHMM predicted membrane proteins
Show all
GO:0000166 [nucleotide binding]
GO:0001501 [skeletal system development]
GO:0001503 [ossification]
GO:0001525 [angiogenesis]
GO:0002063 [chondrocyte development]
GO:0004672 [protein kinase activity]
GO:0004674 [protein serine/threonine kinase activity]
GO:0004694 [eukaryotic translation initiation factor 2alpha kinase activity]
GO:0005515 [protein binding]
GO:0005524 [ATP binding]
GO:0005737 [cytoplasm]
GO:0005783 [endoplasmic reticulum]
GO:0005789 [endoplasmic reticulum membrane]
GO:0005829 [cytosol]
GO:0006417 [regulation of translation]
GO:0006468 [protein phosphorylation]
GO:0006919 [activation of cysteine-type endopeptidase activity involved in apoptotic process]
GO:0006983 [ER overload response]
GO:0006986 [response to unfolded protein]
GO:0007029 [endoplasmic reticulum organization]
GO:0010468 [regulation of gene expression]
GO:0010575 [positive regulation of vascular endothelial growth factor production]
GO:0010628 [positive regulation of gene expression]
GO:0010998 [regulation of translational initiation by eIF2 alpha phosphorylation]
GO:0016020 [membrane]
GO:0016301 [kinase activity]
GO:0016310 [phosphorylation]
GO:0016740 [transferase activity]
GO:0017148 [negative regulation of translation]
GO:0018105 [peptidyl-serine phosphorylation]
GO:0019722 [calcium-mediated signaling]
GO:0019899 [enzyme binding]
GO:0019903 [protein phosphatase binding]
GO:0030282 [bone mineralization]
GO:0030968 [endoplasmic reticulum unfolded protein response]
GO:0031018 [endocrine pancreas development]
GO:0031642 [negative regulation of myelination]
GO:0032055 [negative regulation of translation in response to stress]
GO:0032057 [negative regulation of translational initiation in response to stress]
GO:0034198 [cellular response to amino acid starvation]
GO:0034976 [response to endoplasmic reticulum stress]
GO:0036492 [eiF2alpha phosphorylation in response to endoplasmic reticulum stress]
GO:0036499 [PERK-mediated unfolded protein response]
GO:0042149 [cellular response to glucose starvation]
GO:0042802 [identical protein binding]
GO:0045943 [positive regulation of transcription by RNA polymerase I]
GO:0046777 [protein autophosphorylation]
GO:0048009 [insulin-like growth factor receptor signaling pathway]
GO:0048471 [perinuclear region of cytoplasm]
GO:0051171 [regulation of nitrogen compound metabolic process]
GO:0051879 [Hsp90 protein binding]
GO:0060734 [regulation of endoplasmic reticulum stress-induced eIF2 alpha phosphorylation]
GO:0070417 [cellular response to cold]
GO:0080090 [regulation of primary metabolic process]
GO:0106310 [protein serine kinase activity]
GO:1900182 [positive regulation of protein localization to nucleus]
GO:1902235 [regulation of endoplasmic reticulum stress-induced intrinsic apoptotic signaling pathway]
GO:1990737 [response to manganese-induced endoplasmic reticulum stress]
Show all
1116 aa
125.2 kDa
Yes 2
EIF2AK3-214
ENSP00000508149
ENST00000682603
A0A804HL08
[Direct mapping] Eukaryotic translation initiation factor 2-alpha kinase 3
Show all
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Human disease related genes
   Endocrine and metabolic diseases
   Diabetes
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0004672 [protein kinase activity]
GO:0005524 [ATP binding]
GO:0006468 [protein phosphorylation]
Show all
139 aa
15.5 kDa
No 0
EIF2AK3-216
ENSP00000507663
ENST00000682844
A0A804HJV6
[Direct mapping] Eukaryotic translation initiation factor 2-alpha kinase 3
Show all
   Phobius predicted membrane proteins
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Human disease related genes
   Endocrine and metabolic diseases
   Diabetes
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0004672 [protein kinase activity]
GO:0005524 [ATP binding]
GO:0006468 [protein phosphorylation]
Show all
79 aa
9.1 kDa
No 0
EIF2AK3-217
ENSP00000507214
ENST00000682892
A0A804HIT4
[Direct mapping] Eukaryotic translation initiation factor 2-alpha kinase 3
Show all
Predicted membrane proteins
   Prediction method-based
   Membrane proteins predicted by MDM
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   Phobius predicted membrane proteins
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   # TM segments-based
   2TM proteins predicted by MDM
Human disease related genes
   Endocrine and metabolic diseases
   Diabetes
Protein evidence (Ezkurdia et al 2014)
   DeepTMHMM predicted membrane proteins
Show all
GO:0000166 [nucleotide binding]
GO:0004672 [protein kinase activity]
GO:0005524 [ATP binding]
GO:0005789 [endoplasmic reticulum membrane]
GO:0006468 [protein phosphorylation]
GO:0010468 [regulation of gene expression]
GO:0034976 [response to endoplasmic reticulum stress]
GO:0051171 [regulation of nitrogen compound metabolic process]
GO:0080090 [regulation of primary metabolic process]
Show all
965 aa
109.9 kDa
No 2
EIF2AK3-223
ENSP00000507355
ENST00000684642
A0A804HJ50
[Direct mapping] Eukaryotic translation initiation factor 2-alpha kinase 3
Show all
Predicted membrane proteins
   Prediction method-based
   Membrane proteins predicted by MDM
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   Phobius predicted membrane proteins
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   # TM segments-based
   2TM proteins predicted by MDM
Human disease related genes
   Endocrine and metabolic diseases
   Diabetes
Protein evidence (Ezkurdia et al 2014)
   DeepTMHMM predicted membrane proteins
Show all
GO:0000166 [nucleotide binding]
GO:0004672 [protein kinase activity]
GO:0005524 [ATP binding]
GO:0006468 [protein phosphorylation]
GO:0016020 [membrane]
Show all
859 aa
98.2 kDa
No 2

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