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EPHB2 p.Cys303=

c.909T>C · rs1256565919 · VCV754697

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00322%, nfe)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP -5.6GERP -5.3
Overall
CADD2.043PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00322% European (non-Finnish) · 38/1,180,030 alleles
Filtering AF 0.00239% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0021%
Overall 0.00267% 39/1,461,894 alleles · very rare
Ancestry group Frequency 1 in
European (non-Finnish)grpmax 0.00322% 31,053
Remaining individualsnot grpmax-eligible 0.0016% 62,510

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
EPHB2
Protein
p.Cys303=
Coding
c.909T>C
MANE Select
NM_017449
dbSNP
rs1256565919
Type
single nucleotide variant
Location
chr1:22863134 (GRCh38)
Gene constraint
LOEUF 0.265 · pLI 1.00 (gnomAD)
Structure
AlphaFold pLDDT 80.41 · 5 PDB
Full EPHB2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

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/ephb2-p-cys303 (accessed [today's date]).

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