EEF1D
Chr 8AReukaryotic translation elongation factor 1 delta
Also known as: EF-1D, EF1D, FP1047, NEDTCHAL
The protein functions as a guanine nucleotide exchange factor within the elongation factor-1 complex, stimulating GDP to GTP exchange to regenerate EF-1-alpha for delivering aminoacyl tRNAs to the ribosome during protein synthesis. Biallelic mutations cause an autosomal recessive neurodevelopmental disorder characterized by thin corpus callosum, hypotonia, and absent language development. The gene shows low constraint against loss-of-function variants (LOEUF 0.838), suggesting some tolerance to heterozygous disruption.
Primary Disease Associations & Inheritance
Population Genetics & Constraint
gnomAD v4 — loss-of-function & missense intolerance
Typical tolerance to LoF variation
Tolerant to missense variation
The highest-scoring mechanism for this gene is dominant-negative.
Note: In-silico variant effect predictors (SIFT, PolyPhen, REVEL, CADD) may underestimate pathogenicity of missense variants in genes with GOF or DN mechanisms. Consider functional evidence and clinical context.
Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312.
ClinVar Variant Classifications
276 submitted variants in ClinVar
Classification Summary
Curated Variants Distribution
Classified variants from ClinVar · 5 ACMG categories
| Classification | LoF | Missense + Inframe | Non-coding | Synonymous | Total |
|---|---|---|---|---|---|
Pathogenic | 1 | 1 | 57 | 0 | 59 |
Likely Pathogenic | 1 | 1 | 8 | 0 | 10 |
VUS | 2 | 125 | 9 | 0 | 136 |
Likely Benign | 0 | 12 | 1 | 5 | 18 |
Benign | 0 | 4 | 1 | 8 | 13 |
Conflicting | — | 1 | |||
| Total | 4 | 143 | 76 | 13 | 237 |
LoF = frameshift, stop gained/lost, canonical splice · Counts from ClinVar esearch · Updated hourly
View in ClinVar →Protein Context — Lollipop Plot
EEF1D · protein map & ClinVar variants
Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.
External Resources
Links to major genomics databases and tools
Clinical Trials
Active and recruiting trials from ClinicalTrials.gov
No active trials found for this gene.
Search ClinicalTrials.gov →External Resources
Links to major genomics databases and tools