Is CHD7 p.Pro393= (c.1179A>G) pathogenic?

CHD7 p.Pro393= (c.1179A>G) is classified Benign/Likely benign in CHD7 (ClinVar, Multiple submitters, 10 submitters; last evaluated 2026-01-17). Rare (popmax 0.568%, afr); Associated with CHARGE syndrome.

What condition is associated with CHD7 p.Pro393= (c.1179A>G)?

CHD7 p.Pro393= (c.1179A>G) is associated with CHARGE syndrome, hypogonadotropic hypogonadism 5 with or without anosmia (ClinVar).

How common is CHD7 p.Pro393= (c.1179A>G) in the general population?

CHD7 p.Pro393= (c.1179A>G) is rare (popmax 0.568%, afr) (gnomAD).

CHD7 p.Pro393=

c.1179A>G · rs111238892 · VCV260890

Benign/Likely benign Multiple submitters

Classification

Benign/Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 10 submitters

gnomAD v4.1

Rare

rare (popmax 0.568%, afr)

Conditions

CHARGE syndrome

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
Conservation	phyloP 2.2	GERP 0.41, phastCons 1
Overall
CADD	7.391	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.568% African / African-American · 425/74,878 alleles

Filtering AF 0.523% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.505%

Overall 0.0293% 472/1,612,676 alleles · rare

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.568%	176
Admixed American	0.0384%	2,607
Remaining individualsnot grpmax-eligible	0.032%	3,122
European (non-Finnish)	0.000339%	294,789

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: CHD7
Protein: p.Pro393=
Coding: c.1179A>G
MANE Select: NM_017780
dbSNP: rs111238892
Type: single nucleotide variant
Location: chr8:60742611 (GRCh38)
Gene constraint: LOEUF 0.109 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Residue 393: 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

Also linked: hypogonadotropic hypogonadism 5 with or without anosmia

Similar variants

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
CHD7 c.2836-2A>T Pathogenic ★★ same condition
CHD7 c.2957+2T>C Pathogenic ★★ same condition
CHD7 c.3202-3T>G 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-pro393 (accessed [today's date]).

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