Is WAS p.Pro316His (c.947C>A) pathogenic?

WAS p.Pro316His (c.947C>A) is classified Uncertain significance in WAS (ClinVar, Single submitter, 1 submitter; last evaluated 2021-09-09). AlphaMissense: likely benign (0.2267); Absent from gnomAD v4.1; Associated with thrombocytopenia 1.

What condition is associated with WAS p.Pro316His (c.947C>A)?

WAS p.Pro316His (c.947C>A) is associated with thrombocytopenia 1, X-linked severe congenital neutropenia, Wiskott-Aldrich syndrome (ClinVar).

How common is WAS p.Pro316His (c.947C>A) in the general population?

WAS p.Pro316His (c.947C>A) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about WAS p.Pro316His (c.947C>A)?

AlphaMissense predicts likely benign (score 0.2267) — an in-silico prediction, not a clinical call.

WAS p.Pro316His

c.947C>A · rs2147266241 · VCV1423288

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.2267 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

1/2 damaging

AlphaMissense, SaProt · REVEL no call

Conditions

thrombocytopenia 1

Computational evidence

Protein change
AlphaMissense	0.2267	likely benign
REVEL	0.601	indeterminate
SaProt	LLR -12.38	damaging
⇒ SaProt calls this damaging; AlphaMissense does not; REVEL makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 5.6	GERP 0.31, phastCons 1
Regional constraint	o/e 0.56	unconstrained · MANE · 2,597 bp · p 6e-07 · regional, not allelic
Overall
CADD	19.72	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: WAS
Protein: p.Pro316His
Coding: c.947C>A
MANE Select: NM_000377
dbSNP: rs2147266241
Type: single nucleotide variant
Location: chrX:48688675 (GRCh38)
Structure: AlphaFold pLDDT 70.84 · 7 PDB
Residue 316: the 'disordered' region

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

Disease context

thrombocytopenia 1 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: X-linked severe congenital neutropenia Wiskott-Aldrich syndrome

Similar variants

WAS p.Pro316Thr Uncertain significance ★★ ⚠ same residue
WAS p.Pro316Leu Uncertain significance ★ ⚠ same residue
WAS c.1339-2A>G Pathogenic/Likely pathogenic ★★ same condition
WAS c.1453+2T>C Pathogenic ★★ same condition
WAS c.273+1G>A Pathogenic ★★ same condition
WAS c.360+1G>A Pathogenic ★★ same condition
WAS c.559+5G>A Pathogenic ★★ same condition
WAS c.777+1G>A 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/was-p-pro316his (accessed [today's date]).

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