Is CHD7 p.Pro183Arg (c.548C>G) pathogenic?

CHD7 p.Pro183Arg (c.548C>G) is classified Benign in CHD7 (ClinVar, Single submitter, 1 submitter; last evaluated 2026-02-02). AlphaMissense: likely benign (0.2333); Absent from gnomAD v4.1; Associated with CHARGE syndrome.

What condition is associated with CHD7 p.Pro183Arg (c.548C>G)?

CHD7 p.Pro183Arg (c.548C>G) is associated with CHARGE syndrome (ClinVar).

How common is CHD7 p.Pro183Arg (c.548C>G) in the general population?

CHD7 p.Pro183Arg (c.548C>G) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about CHD7 p.Pro183Arg (c.548C>G)?

AlphaMissense predicts likely benign (score 0.2333) — an in-silico prediction, not a clinical call.

CHD7 p.Pro183Arg

c.548C>G · VCV4802614

Benign Single submitter

Classification

Benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.2333 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

0/2 damaging

AlphaMissense, REVEL · SaProt no call

Conditions

CHARGE syndrome

Computational evidence

Protein change
AlphaMissense	0.2333	likely benign
REVEL	0.16	moderately benign-leaning
SaProt	—	not scored · why
⇒ AlphaMissense and REVEL both call this tolerated; SaProt makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 7.7	GERP 2.4, phastCons 1
Regional constraint	o/e 0.99	unconstrained · MANE · 60 kb · p 0.84 · regional, not allelic
Overall
CADD	25.6	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: CHD7
Protein: p.Pro183Arg
Coding: c.548C>G
MANE Select: NM_017780
Type: single nucleotide variant
Location: chr8:60741980 (GRCh38)
Gene constraint: LOEUF 0.109 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Residue 183: the 'disordered' region

Full CHD7 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

CHARGE syndrome — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

CHD7 p.Pro183Leu Conflicting classifications of pathogenicity ★ ⚠ same residue
CHD7 p.Pro183= Likely benign ★ same residue
CHD7 p.Pro183Ser Uncertain significance ★★ ⚠ same residue
CHD7 c.2097-2A>G Pathogenic ★★ same condition
CHD7 c.2238+1G>A Pathogenic ★★ same condition
CHD7 c.2377-1G>A Likely pathogenic ★★ same condition
CHD7 c.2613+1G>A Pathogenic/Likely pathogenic ★★ same condition
CHD7 c.2836-1G>A Pathogenic/Likely 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/chd7-p-pro183arg (accessed [today's date]).

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