Is EDAR p.Phe255Cys (c.764T>G) pathogenic?

EDAR p.Phe255Cys (c.764T>G) is classified Uncertain significance in EDAR (ClinVar, Single submitter, 1 submitter; last evaluated 2025-12-22). AlphaMissense: likely pathogenic (0.622); Absent from gnomAD v4.1; Associated with ectodermal dysplasia 10A, hypohidrotic/hair/nail type, autosomal dominant.

How common is EDAR p.Phe255Cys (c.764T>G) in the general population?

EDAR p.Phe255Cys (c.764T>G) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about EDAR p.Phe255Cys (c.764T>G)?

AlphaMissense predicts likely pathogenic (score 0.622) — an in-silico prediction, not a clinical call.

EDAR p.Phe255Cys

Q: What condition is associated with EDAR p.Phe255Cys (c.764T>G)?

EDAR p.Phe255Cys (c.764T>G) is associated with ectodermal dysplasia 10A, hypohidrotic/hair/nail type, autosomal dominant, autosomal recessive hypohidrotic ectodermal dysplasia (ClinVar).

c.764T>G · VCV4782711

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.622 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

2/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

ectodermal dysplasia 10A, hypohidrotic/hair/nail type, autosomal dominant

Computational evidence

Protein change
AlphaMissense	0.622	likely pathogenic
REVEL	0.669	pathogenic-leaning
SaProt	LLR -5.65	tolerated
⇒ AlphaMissense and REVEL call this damaging; SaProt does not.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 11	GERP 2.3, phastCons 1
Regional constraint	o/e 0.89	unconstrained · MANE · 34 kb · p 0.0061 · regional, not allelic
Overall
CADD	25.7	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

Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.

Variant & gene context

Gene: EDAR
Protein: p.Phe255Cys
Coding: c.764T>G
MANE Select: NM_022336
Type: single nucleotide variant
Location: chr2:108910499 (GRCh38)
Gene constraint: LOEUF 0.927 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 67.01 · 1 PDB
Residue 255: the 'disordered' region

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

Disease context

ectodermal dysplasia 10A, hypohidrotic/hair/nail type, autosomal dominant — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: autosomal recessive hypohidrotic ectodermal dysplasia

Similar variants

EDAR p.Phe255Tyr Uncertain significance ★ ⚠ same residue
EDAR p.Ala26Val Pathogenic/Likely pathogenic ★★ ⚠ same condition
EDAR p.Arg25Ter Pathogenic/Likely pathogenic ★★ same condition
EDAR p.Arg358Ter Pathogenic ★★ same condition
EDAR p.Arg420Gln Pathogenic/Likely pathogenic ★★ same condition
EDAR p.Arg89His Pathogenic/Likely pathogenic ★★ ⚠ same condition
EDAR p.Arg98Trp Pathogenic/Likely pathogenic ★★ same condition
EDAR p.Cys301Ter Pathogenic ★★ same condition

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/edar-p-phe255cys (accessed [today's date]).

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