EIF3F
Eukaryotic translation initiation factor 3 subunit F
Also known as: eIF3-epsilon, eIF3-p47, EIF3F_HUMAN, EIF3S5
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- O00303
- Gene
- EIF3F
- Ensembl
- ENSG00000175390
- Chromosome
- 11
- Canonical length
- 357 aa
- Protein class
- Disease related genes, Enzymes, Human disease related genes, Potential drug targets, Predicted intracellular proteins
OverviewNCBI Gene
Enables identical protein binding activity and metal-dependent deubiquitinase activity. Contributes to translation initiation factor activity. Involved in IRES-dependent viral translational initiation and translational initiation. Located in membrane. Part of eukaryotic translation initiation factor 3 complex. Implicated in autosomal recessive intellectual developmental disorder 67. [provided by Alliance of Genome Resources, Jul 2025]
Canonical amino-acid sequenceUniProt
357 residues, UniProt reviewed canonical sequence.
>O00303|EIF3F
1 MATPAVPVSA PPATPTPVPA AAPASVPAPT PAPAAAPVPA AAPASSSDPA AAAAATAAPG
61 QTPASAQAPA QTPAPALPGP ALPGPFPGGR VVRLHPVILA SIVDSYERRN EGAARVIGTL
121 LGTVDKHSVE VTNCFSVPHN ESEDEVAVDM EFAKNMYELH KKVSPNELIL GWYATGHDIT
181 EHSVLIHEYY SREAPNPIHL TVDTSLQNGR MSIKAYVSTL MGVPGRTMGV MFTPLTVKYA
241 YYDTERIGVD LIMKTCFSPN RVIGLSSDLQ QVGGASARIQ DALSTVLQYA EDVLSGKVSA
301 DNTVGRFLMS LVNQVPKIVP DDFETMLNSN INDLLMVTYL ANLTQSQIAL NEKLVNLLocalizationUniProt · AlphaFold · HPA
Whether an antibody against EIF3F 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
- Intracellular
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.48
- Highest tissue expression
- 37 nTPM
Expression across tissuesHPA
Tissue
- pancreas: 37 nTPM
- skeletal muscle: 35 nTPM
- ovary: 32 nTPM
- skin: 26 nTPM
- blood vessel: 25 nTPM
- tonsil: 24 nTPM
Single-cell type
- late spermatids: 1,226 nCPM
- extravillous trophoblasts: 766 nCPM
- cytotrophoblasts: 706 nCPM
- decidual stromal cells: 699 nCPM
- migrating cytotrophoblasts: 658 nCPM
- syncytiotrophoblasts: 568 nCPM
Immune cell
- total PBMC: 246 nTPM
- T-reg: 178 nTPM
- memory B-cell: 175 nTPM
- naive B-cell: 163 nTPM
- naive CD4 T-cell: 156 nTPM
- myeloid DC: 131 nTPM
Brain region
- cerebellum: 25 nTPM
- medulla oblongata: 24 nTPM
- white matter: 24 nTPM
- amygdala: 24 nTPM
- hippocampal formation: 23 nTPM
- thalamus: 23 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about EIF3F.
Disease | AllUniProt
Conditions EIF3F is implicated in, by any mechanism.
- Intellectual developmental disorder, autosomal recessive 67 (MRT67) MIM:618295
Disease | GeneticClinVar
4 pathogenic / likely-pathogenic of 96 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Intellectual developmental disorder, autosomal recessive 67
- Inborn genetic diseases
- Intellectual disability
- Neurodevelopmental disorder
- Neurodevelopmental disorder with dysmorphic facies and distal limb anomalies
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)
- 0.31
- gnomAD pLI
- 0.97
- gnomAD missense Z
- -0.11
- DepMap mean gene effect
- -1.46
- DepMap dependency class
- pan
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- formation of cytoplasmic translation initiation complex
- IRES-dependent viral translational initiation
- proteolysis
- translational initiation
Molecular functions
- cysteine-type deubiquitinase activity
- identical protein binding
- metal-dependent deubiquitinase activity
- translation initiation factor activity
- translation initiation factor binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
- JAB1/MPN/MOV34 metalloenzyme domain
- EIF3F/CSN6-like, C-terminal
- MPN domain
- JAB1/Mov34/MPN/PAD-1 ubiquitin protease
- Maintenance of mitochondrial structure and function
- Eukaryotic translation initiation factor 3 subunit F
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of EIF3F 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 EIF3F as an antibody target. Whether an autoantibody or antibody against EIF3F could matter depends on whether native EIF3F is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
EIF3F 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 EIF3F as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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