Is CHD7 p.Pro1855= (c.5565A>G) pathogenic?

CHD7 p.Pro1855= (c.5565A>G) is classified Likely benign in CHD7 (ClinVar, Multiple submitters, 2 submitters; last evaluated 2026-01-04). Very rare (popmax 0.00369%, amr); Associated with CHARGE syndrome.

What condition is associated with CHD7 p.Pro1855= (c.5565A>G)?

CHD7 p.Pro1855= (c.5565A>G) is associated with CHARGE syndrome (ClinVar).

How common is CHD7 p.Pro1855= (c.5565A>G) in the general population?

CHD7 p.Pro1855= (c.5565A>G) is very rare (popmax 0.00369%, amr) (gnomAD).

CHD7 p.Pro1855=

c.5565A>G · rs752961577 · VCV1602630

Likely benign Multiple submitters

Classification

Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

gnomAD v4.1

Rare

very rare (popmax 0.00369%, amr)

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 -0.14	GERP -1.8, phastCons 0.006
Overall
CADD	6.976	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00369% Admixed American · 2/54,184 alleles

Filtering AF 0.000612% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000229%

Overall 0.000127% 2/1,575,486 alleles · very rare exomes 2/1,423,132 · genomes 0/152,354 · joint denominator

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.Pro1855=
Coding: c.5565A>G
MANE Select: NM_017780
dbSNP: rs752961577
Type: single nucleotide variant
Location: chr8:60851062 (GRCh38)
Gene constraint: LOEUF 0.109 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Residue 1855: 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.Pro1855Ser 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
CHD7 c.2836-2A>T Pathogenic ★★ same condition
CHD7 c.2957+2T>C 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-pro1855 (accessed [today's date]).

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