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CHD6 p.Pro1209=

c.3627C>T · rs41278124 · VCV724654

Benign/Likely benign Multiple submitters
Classification
Benign/Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
rare (popmax 0.271%, nfe)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
REVEL0.241benign-leaning
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP -6.5GERP -5.1
Overall
CADD1.654PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.271% European (non-Finnish) · 3,200/1,179,840 alleles
Filtering AF 0.263% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.26%
Overall 0.208% 3,361/1,613,932 alleles · rare
Ancestry group Frequency 1 in
European (non-Finnish)grpmax 0.271% 369
Remaining individualsnot grpmax-eligible 0.107% 933
Finnishnot grpmax-eligible 0.0671% 1,489
African / African-American 0.0373% 2,680
Admixed American 0.0367% 2,728
Middle Eastern 0.0165% 6,060

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
CHD6
Protein
p.Pro1209=
Coding
c.3627C>T
MANE Select
NM_032221
dbSNP
rs41278124
Type
single nucleotide variant
Location
chr20:41451002 (GRCh38)
Gene constraint
LOEUF 0.221 · pLI 1.00 (gnomAD)
Full CHD6 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

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/chd6-p-pro1209 (accessed [today's date]).

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