EIF2AK2
eukaryotic translation initiation factor 2 alpha kinase 2 | PKR, PPP1R83, PRKR

The protein encoded by this gene is a serine/threonine protein kinase that is activated by autophosphorylation after binding to dsRNA. The activated form of the encoded protein can phosphorylate translation initiation factor EIF2S1, which in turn inhibits protein synthesis. This protein is also activated by manganese ions and heparin. The encoded protein plays an important role in the innate immune response against multiple DNA and RNA viruses. [provided by RefSeq, Jul 2021]

Member of: DE-9
Biological processes 67 terms
ATP binding (GO:0005524)RNA binding (GO:0003723)antiviral innate immune response (GO:0140374)cellular response to amino acid starvation (GO:0034198)cellular response to amino acid starvation (GO:0034198)cytoplasm (GO:0005737)cytoplasm (GO:0005737)cytoplasm (GO:0005737)cytoplasm (GO:0005737)cytosol (GO:0005829)cytosol (GO:0005829)defense response to virus (GO:0051607)double-stranded RNA binding (GO:0003725)double-stranded RNA binding (GO:0003725)double-stranded RNA binding (GO:0003725)eukaryotic translation initiation factor 2alpha kinase activity (GO:0004694)eukaryotic translation initiation factor 2alpha kinase activity (GO:0004694)eukaryotic translation initiation factor 2alpha kinase activity (GO:0004694)identical protein binding (GO:0042802)kinase activity (GO:0016301)membrane (GO:0016020)negative regulation of cell population proliferation (GO:0008285)negative regulation of cytoplasmic translation (GO:2000766)negative regulation of cytoplasmic translation (GO:2000766)negative regulation of osteoblast proliferation (GO:0033689)negative regulation of translation (GO:0017148)negative regulation of translation (GO:0017148)negative regulation of viral genome replication (GO:0045071)negative regulation of viral genome replication (GO:0045071)non-membrane spanning protein tyrosine kinase activity (GO:0004715)nucleoplasm (GO:0005654)nucleus (GO:0005634)nucleus (GO:0005634)perinuclear region of cytoplasm (GO:0048471)perinuclear region of cytoplasm (GO:0048471)positive regulation of MAPK cascade (GO:0043410)positive regulation of canonical NF-kappaB signal transduction (GO:0043123)positive regulation of chemokine production (GO:0032722)positive regulation of chemokine production (GO:0032722)positive regulation of cytokine production (GO:0001819)positive regulation of cytokine production (GO:0001819)positive regulation of non-canonical NF-kappaB signal transduction (GO:1901224)positive regulation of non-canonical NF-kappaB signal transduction (GO:1901224)positive regulation of stress-activated MAPK cascade (GO:0032874)positive regulation of stress-activated MAPK cascade (GO:0032874)protein binding (GO:0005515)protein kinase activity (GO:0004672)protein kinase activity (GO:0004672)protein kinase activity (GO:0004672)protein phosphatase regulator activity (GO:0019888)protein serine kinase activity (GO:0106310)protein serine/threonine kinase activity (GO:0004674)protein serine/threonine kinase activity (GO:0004674)protein serine/threonine kinase activity (GO:0004674)protein tyrosine kinase activity (GO:0004713)regulation of NLRP3 inflammasome complex assembly (GO:1900225)regulation of NLRP3 inflammasome complex assembly (GO:1900225)regulation of hematopoietic progenitor cell differentiation (GO:1901532)regulation of hematopoietic progenitor cell differentiation (GO:1901532)regulation of hematopoietic stem cell differentiation (GO:1902036)regulation of hematopoietic stem cell differentiation (GO:1902036)regulation of hematopoietic stem cell proliferation (GO:1902033)regulation of hematopoietic stem cell proliferation (GO:1902033)regulation of translational initiation (GO:0006446)response to interferon-alpha (GO:0035455)response to virus (GO:0009615)ribosome (GO:0005840)
Expression (TPM)
EIF2AK2 — as a Regulated Gene

TFs regulating EIF2AK2 0 TFs

Transcription factors with Perturb-seq knockdown data for EIF2AK2. The Binding column indicates whether any binding evidence exists for this TF–gene pair (ChIP-seq or motif footprint peaks). The Mean coef is the average Perturb-seq regression coefficient across active gRNAs (positive = EIF2AK2 upregulated upon KD; negative = downregulated). The Outlier column indicates whether this gene is in the top or bottom 5% of all TF knockdown effects.

Data: Effect:
TF Mean coef Binding Outlier TF→Gene link

Elements linked to EIF2AK2

Open chromatin peaks (ATAC-seq) in the genomic neighbourhood of EIF2AK2, linked by TSS proximity or chromatin conformation (Multiome / HiCAR). Each element overlaps at least one TF ChIP-seq binding site — the TFs column shows how many distinct TFs bind that element.

Accessibility Element Dist. to TSS Link type TFs
chr2:36,965,735–36,967,324 190.4 kb Distal (>10kb) Multiome 1026
chr2:37,083,780–37,086,187 71.2 kb Distal (>10kb) Multiome 938
chr2:37,156,055–37,157,536 38 bp At TSS Multiome 702
chr2:37,205,153–37,205,870 48.4 kb Distal (>10kb) Multiome 157
chr2:37,231,272–37,232,043 74.6 kb Distal (>10kb) Multiome 891
chr2:37,305,706–37,306,783 149.1 kb Distal (>10kb) Multiome 129
chr2:37,323,791–37,325,583 167.8 kb Distal (>10kb) Multiome 835
chr2:37,443,019–37,443,805 286.4 kb Distal (>10kb) Multiome 55

Genome Browser

Genomic view of the EIF2AK2 locus showing ATAC-seq accessibility and RNA-seq expression across the ESC → DE time course, together with TF binding peaks and element-to-TSS loop connections.

chr2:36,955,735 – 37,453,805
Proximal 1 kb Distal 10 kb Multiome HiCAR ATAC-seq RNA-seq