Is EPHB3 p.Arg84His (c.251G>A) pathogenic?

EPHB3 p.Arg84His (c.251G>A) is classified Likely benign in EPHB3 (ClinVar, Single submitter, 1 submitter; last evaluated 2023-05-18). AlphaMissense: likely benign (0.0928); Very rare (popmax 0.00896%, sas).

How common is EPHB3 p.Arg84His (c.251G>A) in the general population?

EPHB3 p.Arg84His (c.251G>A) is very rare (popmax 0.00896%, sas) (gnomAD).

What do computational predictors say about EPHB3 p.Arg84His (c.251G>A)?

AlphaMissense predicts likely benign (score 0.0928) — an in-silico prediction, not a clinical call.

EPHB3 p.Arg84His

c.251G>A · rs373498027 · VCV2567530

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0928 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00896%, sas)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.0928	likely benign
REVEL	0.18	moderately benign-leaning
SaProt	LLR -5.15	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP -3.7	GERP -5.4
Regional constraint	o/e 0.74	unconstrained · MANE · 19 kb · p 2.4e-21 · regional, not allelic
Overall
CADD	10.78	PHRED · no single calibrated threshold — expert panels disagree

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00896% South Asian · 7/78,120 alleles

Filtering AF 0.00411% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0031%

Overall 0.00375% 58/1,547,156 alleles · very rare

Ancestry group	Frequency	1 in
South Asiangrpmax	0.00896%	11,160
European (non-Finnish)	0.00443%	22,562

Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.

Variant & gene context

Gene: EPHB3
Protein: p.Arg84His
Coding: c.251G>A
MANE Select: NM_004443
dbSNP: rs373498027
Type: single nucleotide variant
Location: chr3:184572571 (GRCh38)
Gene constraint: LOEUF 0.435 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 82.62 · 4 PDB
Residue 84: a disulfide bond; the eph lbd domain

Full EPHB3 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

EPHB3 c.1748+4C>T Benign ★★ same type
EPHB3 p.Phe689= Benign ★★ same type
EPHB3 p.Pro438= Benign ★★ same type
EPHB3 p.Ala220Thr Uncertain significance ★ ⚠ same type
EPHB3 p.Ala229Val Uncertain significance ★ ⚠ same type
EPHB3 p.Ala315Thr Uncertain significance ★ ⚠ same type
EPHB3 p.Ala332Val Uncertain significance ★ ⚠ same type
EPHB3 p.Ala442Glu Uncertain significance ★ ⚠ same type

Built on 18 open, versioned datasets — ClinVar, gnomAD, AlphaMissense, REVEL, ClinGen & more — plus Sugi Variant's own cross-source analysis. Source data 2026-01–2026-10, ClinVar 2026-10. Full sources & versions →

Cite Sugi Variant

Gür T. Sugi Variant: A Deterministic Per-Variant Germline Reference from a Knowledge Graph for Humans and AI Agents. 2026. doi:10.5281/zenodo.21509445. This variant: https://sugi.bio/variant/ephb3-p-arg84his (accessed [today's date]).

Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown