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AFG3L2 p.Arg651=

c.1951A>C · rs764254189 · VCV446809

Benign Single submitter
Classification
Benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0334%, eas)

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 3.4GERP 0.64, phastCons 0.96
Overall
CADD8.295PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0334% East Asian · 15/44,880 alleles
Filtering AF 0.0206% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0166%
Overall 0.000929% 15/1,614,000 alleles · ultra-rare

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
AFG3L2
Protein
p.Arg651=
Coding
c.1951A>C
MANE Select
NM_006796
dbSNP
rs764254189
Type
single nucleotide variant
Location
chr18:12340230 (GRCh38)
Gene constraint
LOEUF 0.724 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 77.07 · 2 PDB
Residue 651
an α-helix
Full AFG3L2 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/afg3l2-p-arg651 (accessed [today's date]).

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