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GRM8 p.Ala513=

c.1539G>A · rs144570925 · VCV748712

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
rare (popmax 0.177%, 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 -20GERP -5.5
Overall
CADD0.16PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.177% African / African-American · 133/75,028 alleles
Filtering AF 0.153% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.143%
Overall 0.011% 177/1,614,020 alleles · rare exomes 96/1,461,756 · genomes 81/152,264 · joint denominator
Ancestry group Frequency 1 in
African / African-Americangrpmax 0.177% 564
Remaining individualsnot grpmax-eligible 0.0112% 8,929
Admixed American 0.00333% 30,005
European (non-Finnish) 0.0028% 35,756
South Asian 0.0022% 45,539

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
GRM8
Protein
p.Ala513=
Coding
c.1539G>A
MANE Select
NM_000845
dbSNP
rs144570925
Type
single nucleotide variant
Location
chr7:126533843 (GRCh38)
Gene constraint
LOEUF 0.687 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 84.11 · 10 PDB
Full GRM8 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/grm8-p-ala513 (accessed [today's date]).

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