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SIN3A p.Gln207=

c.621G>A · rs372433846 · VCV502113

Conflicting classifications of pathogenicity Conflicting submitters
Classification
Conflicting classifications of pathogenicity
ClinVar
Review
Conflicting submitters ★☆☆☆
ClinVar · 3 submitters
gnomAD v4.1
Rare
very rare (popmax 0.00667%, afr)

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
ConservationphyloP 2.2GERP 0.96, phastCons 1
Overall
CADD8.98PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00667% African / African-American · 5/74,982 alleles
Filtering AF 0.00255% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00161%
Overall 0.000867% 14/1,613,950 alleles · very rare exomes 8/1,461,784 · genomes 6/152,166 · joint denominator
Ancestry group Frequency 1 in
African / African-Americangrpmax 0.00667% 14,996
Admixed American 0.00167% 59,990
European (non-Finnish) 0.000678% 147,496

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
SIN3A
Protein
p.Gln207=
Coding
c.621G>A
MANE Select
NM_001145358
dbSNP
rs372433846
Type
single nucleotide variant
Location
chr15:75412898 (GRCh38)
Gene constraint
LOEUF 0.14 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Structure
AlphaFold pLDDT 69.67
Residue 207
the 'interaction with rest' region; the 'disordered' region
Full SIN3A 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/sin3a-p-gln207 (accessed [today's date]).

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