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RASA2 p.Cys64Arg

c.190T>C · VCV4695465

Uncertain significance Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00034%, nfe)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
REVEL0.888moderately pathogenic-leaning
Splicing
SpliceAI<0.2no splice effect predicted · four deltas, not one · how we know
Constraint at this position
ConservationphyloP 7.9GERP 2.3, phastCons 1
Regional constrainto/e 1.07unconstrained · MANE · 121 kb · p 0.039 · regional, not allelic
Overall
CADD28.6PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00034% European (non-Finnish) · 4/1,177,224 alleles
Filtering AF 8e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 5.4e-05%
Overall 0.00025% 4/1,602,558 alleles · very rare exomes 4/1,450,214 · genomes 0/152,344 · joint denominator

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
RASA2
Protein
p.Cys64Arg
Coding
c.190T>C
MANE Select
NM_006506
Type
single nucleotide variant
Location
chr3:141512219 (GRCh38)
Gene constraint
LOEUF 1.484 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 83.63
Residue 64
the c2 1 domain
Full RASA2 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/rasa2-p-cys64arg (accessed [today's date]).

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