Seroatlas · Human Serome Atlas

EEF1A2

Elongation factor 1-alpha 2

Also known as: EEF1AL, EF1A2_HUMAN, HS1, STN, STNL

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
Q05639
Gene
EEF1A2
Ensembl
ENSG00000101210
Chromosome
20
Canonical length
463 aa
Protein class
Disease related genes, Human disease related genes, Metabolic proteins, Plasma proteins, Predicted intracellular proteins
Subcellular location
Cytosol
Quaternary structure
Homodimer

OverviewNCBI Gene

This gene encodes an isoform of the alpha subunit of the elongation factor-1 complex, which is responsible for the enzymatic delivery of aminoacyl tRNAs to the ribosome. This isoform (alpha 2) is expressed in brain, heart and skeletal muscle, and the other isoform (alpha 1) is expressed in brain, placenta, lung, liver, kidney, and pancreas. This gene may be critical in the development of ovarian cancer. [provided by RefSeq, Mar 2014]

Canonical amino-acid sequenceUniProt

463 residues, UniProt reviewed canonical sequence.

>Q05639|EEF1A2
     1  MGKEKTHINI VVIGHVDSGK STTTGHLIYK CGGIDKRTIE KFEKEAAEMG KGSFKYAWVL
    61  DKLKAERERG ITIDISLWKF ETTKYYITII DAPGHRDFIK NMITGTSQAD CAVLIVAAGV
   121  GEFEAGISKN GQTREHALLA YTLGVKQLIV GVNKMDSTEP AYSEKRYDEI VKEVSAYIKK
   181  IGYNPATVPF VPISGWHGDN MLEPSPNMPW FKGWKVERKE GNASGVSLLE ALDTILPPTR
   241  PTDKPLRLPL QDVYKIGGIG TVPVGRVETG ILRPGMVVTF APVNITTEVK SVEMHHEALS
   301  EALPGDNVGF NVKNVSVKDI RRGNVCGDSK SDPPQEAAQF TSQVIILNHP GQISAGYSPV
   361  IDCHTAHIAC KFAELKEKID RRSGKKLEDN PKSLKSGDAA IVEMVPGKPM CVESFSQYPP
   421  LGRFAVRDMR QTVAVGVIKN VEKKSGGAGK VTKSAQKAQK AGK

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against EEF1A2 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.

Antibody reachability
Other membrane
Secreted
No
Transmembrane segments
0
Mean surface accessibility (rSASA)
0.23
Highest tissue expression
1,827 nTPM

Expression across tissuesHPA

Tissue

  • skeletal muscle: 1,827 nTPM
  • heart muscle: 722 nTPM
  • cerebral cortex: 366 nTPM
  • cerebellum: 343 nTPM
  • tongue: 338 nTPM
  • amygdala: 244 nTPM

Single-cell type

  • thymic myoid cells: 613 nCPM
  • pancreatic islet cells: 168 nCPM
  • retinal horizontal cells: 154 nCPM
  • other brain neurons: 134 nCPM
  • brain excitatory neurons: 113 nCPM
  • corticotrophs: 84 nCPM

Immune cell

  • T-reg: 0.2 nTPM
  • basophil: 0 nTPM
  • classical monocyte: 0 nTPM
  • eosinophil: 0 nTPM
  • gdT-cell: 0 nTPM
  • intermediate monocyte: 0 nTPM

Brain region

  • cerebral cortex: 1,074 nTPM
  • white matter: 608 nTPM
  • hypothalamus: 565 nTPM
  • pons: 540 nTPM
  • basal ganglia: 457 nTPM
  • hippocampal formation: 446 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about EEF1A2.

Disease | AllUniProt

Conditions EEF1A2 is implicated in, by any mechanism.

Disease | GeneticClinVar

42 pathogenic / likely-pathogenic of 650 ClinVar records.

Conditions with pathogenic or likely-pathogenic variants.

Genetic constraint and essentialitygnomAD · DepMap

Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.

gnomAD LOEUF (loss-of-function intolerance)
0.19
gnomAD pLI
1
gnomAD missense Z
4.82
DepMap mean gene effect
0.03
DepMap dependency class
selective

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 5% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Biological processes

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

Protein binding partners of EEF1A2 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads EEF1A2 as an antibody target. Whether an autoantibody or antibody against EEF1A2 could matter depends on whether native EEF1A2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

EEF1A2 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.

Annotation status

The present source text does not explicitly label EEF1A2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/EEF1A2. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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