Is CHD7 p.Asp2856= (c.8568C>T) pathogenic?

CHD7 p.Asp2856= (c.8568C>T) is classified Benign/Likely benign in CHD7 (ClinVar, Multiple submitters, 2 submitters; last evaluated 2026-02-01). Ultra-rare (popmax 0.016%, afr); Associated with CHARGE syndrome.

What condition is associated with CHD7 p.Asp2856= (c.8568C>T)?

CHD7 p.Asp2856= (c.8568C>T) is associated with CHARGE syndrome (ClinVar).

How common is CHD7 p.Asp2856= (c.8568C>T) in the general population?

CHD7 p.Asp2856= (c.8568C>T) is ultra-rare (popmax 0.016%, afr) (gnomAD).

CHD7 p.Asp2856=

c.8568C>T · rs539868738 · VCV1142999

Benign/Likely benign Multiple submitters

Classification

Benign/Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

gnomAD v4.1

Rare

ultra-rare (popmax 0.016%, 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 3.3	GERP -1.1, phastCons 1
Overall
CADD	9.334	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.016% African / African-American · 12/75,064 alleles

Filtering AF 0.0092% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0072%

Overall 0.000929% 15/1,614,070 alleles · ultra-rare exomes 7/1,461,704 · genomes 8/152,366 · joint denominator

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.016%	6,255
Remaining individualsnot grpmax-eligible	0.0048%	20,829

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.Asp2856=
Coding: c.8568C>T
MANE Select: NM_017780
dbSNP: rs539868738
Type: single nucleotide variant
Location: chr8:60865507 (GRCh38)
Gene constraint: LOEUF 0.109 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Residue 2856: 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.Asp2856_Ser2857insTer Pathogenic ★ 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-asp2856 (accessed [today's date]).

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