Is CHD9 p.Phe311Ser (c.932T>C) pathogenic?

CHD9 p.Phe311Ser (c.932T>C) is classified Uncertain significance in CHD9 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-08-05). AlphaMissense: likely benign (0.1388); Absent from gnomAD v4.1.

How common is CHD9 p.Phe311Ser (c.932T>C) in the general population?

CHD9 p.Phe311Ser (c.932T>C) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about CHD9 p.Phe311Ser (c.932T>C)?

AlphaMissense predicts likely benign (score 0.1388) — an in-silico prediction, not a clinical call.

CHD9 p.Phe311Ser

c.932T>C · VCV4227951

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1388 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

1/2 damaging

AlphaMissense, REVEL · SaProt no call

Computational evidence

Protein change
AlphaMissense	0.1388	likely benign
REVEL	0.668	pathogenic-leaning
SaProt	—	not scored · why
⇒ REVEL calls this damaging; AlphaMissense does not; SaProt makes no call.
Splicing
SpliceAI	<0.2	no splice effect predicted · four deltas, not one · how we know
Constraint at this position
Conservation	phyloP 6.2	GERP 2.2, phastCons 1
Regional constraint	o/e 0.96	unconstrained · MANE · 75 kb · p 0.29 · regional, not allelic
Overall
CADD	23.3	PHRED · no single calibrated threshold — expert panels disagree

AlphaMissense carries the ACMG weight for missense; REVEL is an independent agreement signal.

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: CHD9
Protein: p.Phe311Ser
Coding: c.932T>C
MANE Select: NM_001308319
Type: single nucleotide variant
Location: chr16:53157021 (GRCh38)
Gene constraint: LOEUF 0.309 · pLI 1.00 (gnomAD)

Full CHD9 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

CHD9 c.6620-2A>C Uncertain significance ★ same type
CHD9 p.Ala1363Thr Uncertain significance ★ ⚠ same type
CHD9 p.Ala1408Val Uncertain significance ★ ⚠ same type
CHD9 p.Ala1537Thr Uncertain significance ★ same type
CHD9 p.Ala167Val Uncertain significance ★ same type
CHD9 p.Ala1724Gly Uncertain significance ★ same type
CHD9 p.Ala1742Val Uncertain significance ★ same type
CHD9 p.Ala1938Thr 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/chd9-p-phe311ser (accessed [today's date]).

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