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CD200 p.Arg261His

c.782G>A · rs190683466 · VCV3140411

Uncertain significance Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0133%, sas)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
REVEL0.086moderately benign-leaning
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP 2.3GERP -0.053, phastCons 1
Regional constrainto/e 0.81unconstrained · MANE · 28 kb · p 0.00055 · regional, not allelic
Overall
CADD22.9PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0133% South Asian · 12/90,052 alleles
Filtering AF 0.00769% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00599%
Overall 0.00292% 47/1,609,938 alleles · ultra-rare
Ancestry group Frequency 1 in
South Asiangrpmax 0.0133% 7,504
East Asian 0.0112% 8,950
Admixed American 0.0101% 9,901
Remaining individualsnot grpmax-eligible 0.00481% 20,782
Finnishnot grpmax-eligible 0.00313% 31,987
European (non-Finnish) 0.00153% 65,448
African / African-American 0.00134% 74,864

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
CD200
Protein
p.Arg261His
Coding
c.782G>A
MANE Select
NM_005944
dbSNP
rs190683466
Type
single nucleotide variant
Location
chr3:112349799 (GRCh38)
Gene constraint
LOEUF 0.85 · pLI 0.02 (gnomAD)
Structure
AlphaFold pLDDT 86.39
Full CD200 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/cd200-p-arg261his (accessed [today's date]).

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