EFNA1

Chr 1

ephrin A1

Also known as: B61, ECKLG, EPLG1, GMAN, LERK-1, LERK1, TNFAIP4

This gene encodes a member of the ephrin (EPH) family. The ephrins and EPH-related receptors comprise the largest subfamily of receptor protein-tyrosine kinases and have been implicated in mediating developmental events, especially in the nervous system and in erythropoiesis. Based on their structures and sequence relationships, ephrins are divided into the ephrin-A (EFNA) class, which are anchored to the membrane by a glycosylphosphatidylinositol linkage, and the ephrin-B (EFNB) class, which are transmembrane proteins. This gene encodes an EFNA class ephrin which binds to the EPHA2, EPHA4, EPHA5, EPHA6, and EPHA7 receptors. Two transcript variants that encode different isoforms were identified through sequence analysis. [provided by RefSeq, Jul 2008]

OMIMResearchGenerating 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
43
Pubs (1 yr)
P/LP submissions
P/LP missense
0.63
LOEUF
Mechanism

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint?
0.63LOEUF
pLI 0.463
Z-score 2.34
OE 0.20 (0.080.63)
Tolerant

Typical tolerance to LoF variation

Missense Constraint?
0.83Z-score
OE missense 0.79 (0.670.93)
96 obs / 121.9 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios?
LoF OE?0.20 (0.080.63)
00.351.4
Missense OE?0.79 (0.670.93)
00.61.4
Synonymous OE?0.81
01.21.6
LoF obs/exp: 2 / 10.0Missense obs/exp: 96 / 121.9Syn Z: 1.04

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

EFNA1 · 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

No active trials found for this gene.

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