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ARHGAP6 p.Arg128=

c.384C>A · rs1188248646 · VCV2659990

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00347%, 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 -0.025GERP -2.6
Overall
CADD9.376PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00347% African / African-American · 2/57,684 alleles
Filtering AF 0.000575% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000215%
Overall 0.000661% 8/1,210,724 alleles · very rare
Ancestry group Frequency 1 in
African / African-Americangrpmax 0.00347% 28,842
European (non-Finnish) 0.00067% 149,186

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
ARHGAP6
Protein
p.Arg128=
Coding
c.384C>A
MANE Select
NM_013427
dbSNP
rs1188248646
Type
single nucleotide variant
Location
chrX:11664445 (GRCh38)
Structure
AlphaFold pLDDT 56.60
Full ARHGAP6 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/arhgap6-p-arg128 (accessed [today's date]).

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