RASGRP2 p.Arg455=
c.1365T>A · VCV4764579
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.029%, 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 | ||
| Conservation | phyloP 0.45 | GERP -3, phastCons 0.9 |
| Overall | ||
| CADD | 9.222 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.029%
East Asian · 13/44,896 alleles
Filtering AF
0.0171%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0136%
Overall
0.000867%
14/1,614,200 alleles · ultra-rare
exomes 14/1,461,890 · genomes 0/152,310 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| East Asiangrpmax | 0.029% | 3,454 |
| Remaining individualsnot grpmax-eligible | 0.0016% | 62,502 |
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
- RASGRP2
- Protein
- p.Arg455=
- Coding
- c.1365T>A
- MANE Select
- NM_001098671
- Type
- single nucleotide variant
- Location
- chr11:64735159 (GRCh38)
- Gene constraint
- LOEUF 0.854 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 77.48 · 2 PDB
- Residue 455
- a UniProt-annotated variant site (in bdplt18); a UniProt-annotated variant site (in bdplt18; lack of mutant protein in platelets from a patient homozygous for the mutation); the ef-hand 1 domain; the ef-hand 2 domain; a turn
Similar variants
- RASGRP2 p.Arg455Cys Uncertain significance ★ ⚠ same residue
- RASGRP2 p.Gly305Asp Likely pathogenic ★★ same type
- RASGRP2 p.Arg387Gly Uncertain significance ★★ ⚠ same type
- RASGRP2 p.Arg593His Uncertain significance ★★ ⚠ same type
- RASGRP2 p.Asn330Lys Uncertain significance ★★ ⚠ same type
- RASGRP2 p.Gly331Arg Uncertain significance ★★ ⚠ same type
- RASGRP2 p.Gly492Trp Uncertain significance ★★ ⚠ same type
- RASGRP2 p.Leu107Ile Uncertain significance ★★ ⚠ same type
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/rasgrp2-p-arg455 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown