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CD274 p.Gln66=

c.198A>G · rs145080325 · VCV792122

Benign Single submitter
Classification
Benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
rare (popmax 0.529%, afr)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI<0.2no splice effect predicted · four deltas, not one · how we know
Constraint at this position
ConservationphyloP -3.4GERP -3.9
Overall
CADD1.111PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.529% African / African-American · 397/75,058 alleles
Filtering AF 0.486% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.469%
Overall 0.0392% 633/1,614,132 alleles · rare exomes 409/1,461,798 · genomes 224/152,334 · joint denominator
Ancestry group Frequency 1 in
African / African-Americangrpmax 0.529% 189
South Asian 0.178% 562
Remaining individualsnot grpmax-eligible 0.0544% 1,839
Middle Eastern 0.033% 3,031
Admixed American 0.0167% 5,999
European (non-Finnish) 0.00229% 43,703
East Asian 0.00223% 44,888

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
CD274
Protein
p.Gln66=
Coding
c.198A>G
MANE Select
NM_014143
dbSNP
rs145080325
Type
single nucleotide variant
Location
chr9:5457224 (GRCh38)
Gene constraint
LOEUF 0.476 · pLI 0.98 (gnomAD)
Structure
AlphaFold pLDDT 88.13 · 78 PDB
Residue 66
a β-strand; the ig-like v-type domain
Full CD274 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/cd274-p-gln66 (accessed [today's date]).

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