FKRP p.Pro422=
c.1266C>G · rs374056230 · VCV702156
Likely benign
Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
ultra-rare (popmax 0.0187%, afr)
Conditions
2
Cardiovascular phenotype
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 -0.65 | GERP -2.5, phastCons 0.018 |
| Overall | ||
| CADD | 5.997 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0187%
African / African-American · 14/74,920 alleles
Filtering AF
0.0112%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.00905%
Overall
0.000931%
15/1,611,676 alleles · ultra-rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| African / African-Americangrpmax | 0.0187% | 5,351 |
| Remaining individualsnot grpmax-eligible | 0.0016% | 62,428 |
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
- FKRP
- Protein
- p.Pro422=
- Coding
- c.1266C>G
- MANE Select
- NM_024301
- dbSNP
- rs374056230
- Type
- single nucleotide variant
- Location
- chr19:46756716 (GRCh38)
- Gene constraint
- LOEUF 1.543 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 94.08 · 8 PDB
- Residue 422
- a β-strand
Similar variants
- FKRP p.Ala157Pro Pathogenic/Likely pathogenic ★★ same condition
- FKRP p.Ala321Glu Pathogenic/Likely pathogenic ★★ ⚠ same condition
- FKRP p.Ala455Asp Pathogenic ★★ same condition
- FKRP p.Arg176Ter Pathogenic/Likely pathogenic ★★ same condition
- FKRP p.Arg275Cys Pathogenic/Likely pathogenic ★★ same condition
- FKRP p.Arg54Gly Likely pathogenic ★★ ⚠ same condition
- FKRP p.Asn463Asp Pathogenic/Likely pathogenic ★★ same condition
- FKRP p.Gln105Ter Pathogenic/Likely pathogenic ★★ same condition
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/fkrp-p-pro422 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown