Is EPHB4 p.Ala800Thr (c.2398G>A) pathogenic?

EPHB4 p.Ala800Thr (c.2398G>A) is classified Uncertain significance in EPHB4 (ClinVar, Single submitter, 1 submitter; last evaluated 2023-06-16). AlphaMissense: likely pathogenic (0.5669); Very rare (popmax 0.00668%, afr).

How common is EPHB4 p.Ala800Thr (c.2398G>A) in the general population?

EPHB4 p.Ala800Thr (c.2398G>A) is very rare (popmax 0.00668%, afr) (gnomAD).

What do computational predictors say about EPHB4 p.Ala800Thr (c.2398G>A)?

AlphaMissense predicts likely pathogenic (score 0.5669) — an in-silico prediction, not a clinical call.

EPHB4 p.Ala800Thr

c.2398G>A · rs761850149 · VCV2899266

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.5669 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00668%, afr)

Missense predictors

2/2 damaging

AlphaMissense, SaProt · REVEL no call

Computational evidence

Protein change
AlphaMissense	0.5669	likely pathogenic
REVEL	0.633	indeterminate
SaProt	LLR -11.09	damaging
⇒ AlphaMissense and SaProt both call this damaging; REVEL makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 6	GERP 2.5, phastCons 1
Regional constraint	o/e 0.61	unconstrained · MANE · 6,734 bp · p 5.4e-12 · regional, not allelic
Overall
CADD	32.0	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean damaging — a triage signal, not a reclassification

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

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00668% African / African-American · 5/74,902 alleles

Filtering AF 0.00255% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00162%

Overall 0.000867% 14/1,613,940 alleles · very rare

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.00668%	14,980
South Asian	0.0011%	91,086
European (non-Finnish)	0.000678%	147,501

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: EPHB4
Protein: p.Ala800Thr
Coding: c.2398G>A
MANE Select: NM_004444
dbSNP: rs761850149
Type: single nucleotide variant
Location: chr7:100806506 (GRCh38)
Gene constraint: LOEUF 0.645 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 82.46 · 23 PDB
Residue 800: an α-helix; a UniProt-annotated variant site (in cmavm2); the protein kinase domain

Full EPHB4 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

EPHB4 p.Ala800fs Pathogenic ★ same residue
EPHB4 c.1691+1G>A Pathogenic/Likely pathogenic ★★ same type
EPHB4 c.2484+1G>A Pathogenic/Likely pathogenic ★★ same type
EPHB4 p.Arg269Ter Pathogenic/Likely pathogenic ★★ same type
EPHB4 p.Arg365Ter Pathogenic/Likely pathogenic ★★ same type
EPHB4 p.Arg394Ter Pathogenic ★★ same type
EPHB4 p.Arg431Ter Pathogenic ★★ same type
EPHB4 p.Arg739Gln Pathogenic ★★ 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/ephb4-p-ala800thr (accessed [today's date]).

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