EIF4B

Chr 12

eukaryotic translation initiation factor 4B

Also known as: EIF-4B, PRO1843

NCBI Gene: 1975ENSG00000063046UniProt: P23588

Enables RNA binding activity. Predicted to be involved in eukaryotic translation initiation factor 4F complex assembly and formation of translation preinitiation complex. Located in cytosol. Biomarker of autism spectrum disorder and major depressive disorder. [provided by Alliance of Genome Resources, Jul 2025]

ResearchGenerating clinical summary…

Clinical highlights

Interpreting a novel variant
This gene is strongly intolerant of loss-of-function variation in the population, so LoF variants warrant close attention. No curated mechanism annotation is available — see the mechanism card for the computational prediction and its caveats.Based on population constraint only.
0
Active trials
36
Pubs (1 yr)
—
P/LP submissions
—
P/LP missense
0.12
LOEUF· LoF intol.
LOF
Mechanism· predicted
Some data sources returned errors (1)

omim: Error: OMIM fetch failed: 429

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

gnomAD
LoF intolerant — likely haploinsufficient
LoF Constraint?
0.12LOEUF
pLI 1.000
Z-score 5.60
OE 0.03 (0.01–0.12)
Highly constrained

Among the most LoF-intolerant genes (~top 3%)

Missense Constraint?
2.15Z-score
OE missense 0.69 (0.62–0.76)
261 obs / 378.9 exp
Mild constraint

Moderately missense-constrained (top ~2.5%)

Observed / Expected Ratios?
LoF OE?0.03 (0.01–0.12)
0≤0.351.4
Missense OE?0.69 (0.62–0.76)
0≤0.61.4
Synonymous OE?1.06
0≤1.21.6
LoF obs/exp: 1 / 38.5Missense obs/exp: 261 / 378.9Syn Z: -0.52

ClinVar Variant Classifications

0 submitted variants in ClinVar

ClinVar

Protein Context — Lollipop Plot

EIF4B · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

ClinicalTrials.gov

No active trials found for this gene.

Search ClinicalTrials.gov →

External Resources

Links to major genomics databases and tools

Franklin by Genoox
AI-powered variant curation and clinical analysis
DECIPHER
Genomic variants and phenotypes in rare disease patients