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ADGRA3 p.Leu276=

c.828G>A · rs773889398 · VCV1908797

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0164%, mid)

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 -3.3GERP -4
Overall
CADD2.585PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0164% Middle Eastern · 1/6,084 alleles
Filtering AF 6.8e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 1.9e-05%
Overall 0.000372% 6/1,612,386 alleles · ultra-rare
Ancestry group Frequency 1 in
Middle Easterngrpmax 0.0164% 6,084
Admixed American 0.00167% 59,930
African / African-American 0.00134% 74,848
European (non-Finnish) 0.000254% 392,929

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
ADGRA3
Protein
p.Leu276=
Coding
c.828G>A
MANE Select
NM_145290
dbSNP
rs773889398
Type
single nucleotide variant
Location
chr4:22442742 (GRCh38)
Gene constraint
LOEUF 0.607 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 70.20
Residue 276
the ig-like domain; a disulfide bond
Full ADGRA3 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/adgra3-p-leu276 (accessed [today's date]).

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