Eif2a eukaryotic translation initiation factor 2A [Mus musculus (house mouse)] - Gene

Summary

Official Symbol: Eif2aprovided by MGI
Official Full Name: eukaryotic translation initiation factor 2Aprovided by MGI
Primary source: MGI:MGI:1098684
See related: Ensembl:ENSMUSG00000027810 AllianceGenome:MGI:1098684
Gene type: protein coding
RefSeq status: VALIDATED
Organism: Mus musculus
Lineage: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae; Murinae; Mus; Mus
Also known as: D030048D22; D3Ertd194e
Summary: Predicted to enable RNA binding activity; ribosome binding activity; and translation initiation factor activity. Acts upstream of or within several processes, including SREBP signaling pathway; protein phosphorylation; and regulation of signal transduction. Predicted to be located in cytoplasm. Predicted to be part of eukaryotic translation initiation factor 2 complex. Is expressed in several structures, including brain; heart; lens; liver; and ovary. Orthologous to human EIF2A (eukaryotic translation initiation factor 2A). [provided by Alliance of Genome Resources, Jul 2025]
Expression: Broad expression in adrenal adult (RPKM 100.7), duodenum adult (RPKM 76.7) and 18 other tissues See more
Orthologs: human all
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Genomic context

Location:: 3 D; 3 28.58 cM

Exon count:: 14

Annotation release	Status	Assembly	Chr	Location
RS_2024_02	current	GRCm39 (GCF_000001635.27)	3	NC_000069.7 (58433252..58464922)
108.20200622	previous assembly	GRCm38.p6 (GCF_000001635.26)	3	NC_000069.6 (58525821..58557501)

Chromosome 3 - NC_000069.7 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Genomic Sequence:

Go to nucleotide: Graphics FASTA GenBank

Expression

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See details

Project title: Mouse ENCODE transcriptome data
Description: RNA profiling data sets generated by the Mouse ENCODE project.
BioProject: PRJNA66167
Publication: PMID 25409824
Analysis date: n/a

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Melatonin Protects Against Mitochondrial Dyshomeostasis and Ovarian Damage Caused by Chronic Unpredictable Mild Stress Through the eIF2alpha-AFT4 Signaling Pathway in Mice.
Title: Melatonin Protects Against Mitochondrial Dyshomeostasis and Ovarian Damage Caused by Chronic Unpredictable Mild Stress Through the eIF2α-AFT4 Signaling Pathway in Mice.
Impact of eIF2alpha phosphorylation on the translational landscape of mouse embryonic stem cells.
Title: Impact of eIF2α phosphorylation on the translational landscape of mouse embryonic stem cells.
ALKBH5 protects against stroke by reducing endoplasmic reticulum stress-dependent inflammation injury via the STAT5/PERK/EIF2alpha/CHOP signaling pathway in an m[6]A-YTHDF1-dependent manner.
Title: ALKBH5 protects against stroke by reducing endoplasmic reticulum stress-dependent inflammation injury via the STAT5/PERK/EIF2α/CHOP signaling pathway in an m(6)A-YTHDF1-dependent manner.
Activation of BZW1 by CEBPB in macrophages promotes eIF2alpha phosphorylation-mediated metabolic reprogramming and endoplasmic reticulum stress in MRL/lpr lupus-prone mice.
Title: Activation of BZW1 by CEBPB in macrophages promotes eIF2α phosphorylation-mediated metabolic reprogramming and endoplasmic reticulum stress in MRL/lpr lupus-prone mice.
Bridging Energy Need and Feeding Behavior: The Impact of eIF2alpha Phosphorylation in AgRP Neurons.
Title: Bridging Energy Need and Feeding Behavior: The Impact of eIF2α Phosphorylation in AgRP Neurons.
Oxidized phospholipids facilitate calcific aortic valve disease by elevating ATF4 through the PERK/eIF2alpha axis.
Title: Oxidized phospholipids facilitate calcific aortic valve disease by elevating ATF4 through the PERK/eIF2α axis.
Iron overload induces apoptosis of osteoblast cells via eliciting ER stress-mediated mitochondrial dysfunction and p-eIF2alpha/ATF4/CHOP pathway in vitro.
Title: Iron overload induces apoptosis of osteoblast cells via eliciting ER stress-mediated mitochondrial dysfunction and p-eIF2α/ATF4/CHOP pathway in vitro.
eIF2alphaP is a nodal point of mTORC1 signaling, which can determine the susceptibility of TSC2-deficient cells to oxidative insults and their efficacy in tumor formation in mice maintained on antioxidant diet.
Title: Downregulation of PERK activity and eIF2α serine 51 phosphorylation by mTOR complex 1 elicits pro-oxidant and pro-death effects in tuberous sclerosis-deficient cells.
phosphorylation of eIF2alpha was mediated via protein kinase R (PKR), but further investigation revealed that PKR activation, phosphorylation of eIF2alpha, and translational arrest were uncoupled during viral infection
Title: Mouse Norovirus Infection Arrests Host Cell Translation Uncoupled from the Stress Granule-PKR-eIF2α Axis.
CReP deletion activates a linear signaling pathway involving eIF2alpha phosphorylation, ATF4 translation, and FGF21 induction, which promotes increased energy expenditure, and subsequently improved obesity-related metabolic parameters.
Title: Preemptive Activation of the Integrated Stress Response Protects Mice From Diet-Induced Obesity and Insulin Resistance by Fibroblast Growth Factor 21 Induction.

Submit: New GeneRIF Correction See all GeneRIFs (53)

Variation

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Alleles

Alleles of this type are documented at Mouse Genome Informatics (MGI)

Endonuclease-mediated (4)
Gene trapped (1)

Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Markers

RH126411 (e-PCR)
- UniSTS:163119

D10Mit157.2 (e-PCR), detects polymorphism
- UniSTS:126061

BB254882 (e-PCR)
- UniSTS:207493

Gene Ontology Provided by MGI

Function	Evidence Code	Pubs
enables mRNA binding	IBA Inferred from Biological aspect of Ancestor more info
enables ribosome binding	IBA Inferred from Biological aspect of Ancestor more info
enables ribosome binding	IEA Inferred from Electronic Annotation more info
enables ribosome binding	ISO Inferred from Sequence Orthology more info
enables ribosome binding	ISS Inferred from Sequence or Structural Similarity more info
enables tRNA binding	IBA Inferred from Biological aspect of Ancestor more info
enables tRNA binding	IEA Inferred from Electronic Annotation more info
enables tRNA binding	ISO Inferred from Sequence Orthology more info
enables tRNA binding	ISS Inferred from Sequence or Structural Similarity more info
enables translation initiation factor activity	IBA Inferred from Biological aspect of Ancestor more info
enables translation initiation factor activity	IEA Inferred from Electronic Annotation more info
enables translation initiation factor activity	ISO Inferred from Sequence Orthology more info
enables translation initiation factor activity	ISS Inferred from Sequence or Structural Similarity more info

Process	Evidence Code	Pubs
acts_upstream_of_or_within SREBP signaling pathway	IDA Inferred from Direct Assay more info	PubMed
involved_in endoplasmic reticulum unfolded protein response	TAS Traceable Author Statement more info	PubMed
acts_upstream_of intrinsic apoptotic signaling pathway	IDA Inferred from Direct Assay more info	PubMed
acts_upstream_of intrinsic apoptotic signaling pathway	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within negative regulation of intrinsic apoptotic signaling pathway	IDA Inferred from Direct Assay more info	PubMed
involved_in negative regulation of translation	TAS Traceable Author Statement more info	PubMed
involved_in positive regulation of ERAD pathway	TAS Traceable Author Statement more info	PubMed
acts_upstream_of_or_within positive regulation of signal transduction	IDA Inferred from Direct Assay more info	PubMed
acts_upstream_of_or_within protein phosphorylation	IDA Inferred from Direct Assay more info	PubMed
involved_in regulation of translation	IEA Inferred from Electronic Annotation more info
involved_in regulation of translation	ISO Inferred from Sequence Orthology more info
involved_in regulation of translation	ISS Inferred from Sequence or Structural Similarity more info
involved_in response to amino acid starvation	IEA Inferred from Electronic Annotation more info
involved_in response to amino acid starvation	ISO Inferred from Sequence Orthology more info
involved_in ribosome assembly	IEA Inferred from Electronic Annotation more info
involved_in ribosome assembly	ISO Inferred from Sequence Orthology more info
involved_in ribosome assembly	ISS Inferred from Sequence or Structural Similarity more info
acts_upstream_of_or_within translation	IDA Inferred from Direct Assay more info	PubMed
involved_in translation	IEA Inferred from Electronic Annotation more info
involved_in translational initiation	IEA Inferred from Electronic Annotation more info
acts_upstream_of_or_within translational initiation	ISO Inferred from Sequence Orthology more info
involved_in translational initiation	ISO Inferred from Sequence Orthology more info

Component	Evidence Code	Pubs
located_in cytoplasm	IEA Inferred from Electronic Annotation more info
located_in cytoplasm	ISO Inferred from Sequence Orthology more info
located_in cytoplasm	ISS Inferred from Sequence or Structural Similarity more info
part_of eukaryotic translation initiation factor 2 complex	IEA Inferred from Electronic Annotation more info
part_of eukaryotic translation initiation factor 2 complex	ISO Inferred from Sequence Orthology more info
part_of eukaryotic translation initiation factor 2 complex	ISS Inferred from Sequence or Structural Similarity more info

General protein information

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Preferred Names: eukaryotic translation initiation factor 2A

Names: eIF-2A

NCBI Reference Sequences (RefSeq)

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

mRNA and Protein(s)

NM_001005509.3 → NP_001005509.1 eukaryotic translation initiation factor 2A isoform 1

See identical proteins and their annotated locations for NP_001005509.1

Status: VALIDATED

Source sequence(s)

AC119873, AC121794

Consensus CDS

CCDS17367.1

UniProtKB/Swiss-Prot

Q05C11, Q640P8, Q8BJW6

Related

ENSMUSP00000029387.9, ENSMUST00000029387.15

Conserved Domains (2) summary

pfam08662
Location:216 → 411

eIF2A; Eukaryotic translation initiation factor eIF2A

cl02567
Location:41 → 143

WD40; WD40 domain, found in a number of eukaryotic proteins that cover a wide variety of functions including adaptor/regulatory modules in signal transduction, pre-mRNA processing and cytoskeleton assembly; typically contains a GH dipeptide 11-24 residues from ...
NM_001411292.1 → NP_001398221.1 eukaryotic translation initiation factor 2A isoform 2

Status: VALIDATED

Source sequence(s)

AC119873, AC121794
NM_001411293.1 → NP_001398222.1 eukaryotic translation initiation factor 2A isoform 3

Status: VALIDATED

Source sequence(s)

AC119873, AC121794

RefSeqs of Annotated Genomes: GCF_000001635.27-RS_2024_02

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference GRCm39 C57BL/6J

Genomic

NC_000069.7 Reference GRCm39 C57BL/6J

Range

58433252..58464922

Download

GenBank, FASTA, Sequence Viewer (Graphics)

mRNA and Protein(s)

XM_006501321.5 → XP_006501384.1 eukaryotic translation initiation factor 2A isoform X1

See identical proteins and their annotated locations for XP_006501384.1

Conserved Domains (2) summary

COG5354
Location:36 → 508

COG5354; Uncharacterized protein, contains Trp-Asp (WD) repeat [General function prediction only]

pfam08662
Location:157 → 352

eIF2A; Eukaryotic translation initiation factor eIF2A
XM_036163037.1 → XP_036018930.1 eukaryotic translation initiation factor 2A isoform X2

Conserved Domains (2) summary

COG5354
Location:22 → 454

COG5354; Uncharacterized protein, contains Trp-Asp (WD) repeat [General function prediction only]

pfam08662
Location:103 → 298

eIF2A; Eukaryotic translation initiation factor eIF2A