RASGRP1 p.Tyr482=
c.1446T>C · rs77995194 · VCV1170545
Benign
Multiple submitters
Classification
Benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 4 submitters
gnomAD v4.1
Rare
low-frequency (popmax 1.9%, 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 | ||
| Conservation | phyloP 0.63 | GERP -1.6, phastCons 0.9 |
| Overall | ||
| CADD | 5.575 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
1.9%
African / African-American · 1,423/74,704 alleles
Filtering AF
1.82%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 1.79%
Overall
0.1%
1,603/1,597,488 alleles · low-frequency
| Ancestry group | Frequency | 1 in |
|---|---|---|
| African / African-Americangrpmax | 1.9% | 52 |
| Remaining individualsnot grpmax-eligible | 0.153% | 652 |
| Admixed American | 0.115% | 869 |
| Middle Eastern | 0.0166% | 6,034 |
| South Asian | 0.00663% | 15,085 |
| European (non-Finnish) | 0.000772% | 129,466 |
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
- RASGRP1
- Protein
- p.Tyr482=
- Coding
- c.1446T>C
- MANE Select
- NM_005739
- dbSNP
- rs77995194
- Type
- single nucleotide variant
- Location
- chr15:38502404 (GRCh38)
- Gene constraint
- LOEUF 0.538 · pLI 0.48 (gnomAD)
- Structure
- AlphaFold pLDDT 72.43 · 2 PDB
- Residue 482
- a UniProt-annotated variant site (in imd64; loss of protein expression); a UniProt-annotated variant site (in imd64); a UniProt-annotated variant site (in imd64; no effect on protein expression; decreased t cell activation); the ef-hand 1 domain; an α-helix
Similar variants
- RASGRP1 c.327-1C>G Pathogenic/Likely pathogenic ★★ same type
- RASGRP1 p.Arg81Ter Pathogenic/Likely pathogenic ★★ same type
- RASGRP1 p.Ala57Ser Uncertain significance ★★ ⚠ same type
- RASGRP1 p.Arg167Cys Uncertain significance ★★ ⚠ same type
- RASGRP1 p.Arg177His Uncertain significance ★★ ⚠ same type
- RASGRP1 p.Arg663Gln Uncertain significance ★★ ⚠ same type
- RASGRP1 p.Arg741His Uncertain significance ★★ ⚠ same type
- RASGRP1 p.Asn241Ser 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/rasgrp1-p-tyr482 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown