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RYR2 p.Val663=

c.1989C>G · rs2545834964 · VCV2774256

Conflicting classifications of pathogenicity Conflicting submitters
Classification
Conflicting classifications of pathogenicity
ClinVar
Review
Conflicting submitters ★☆☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
very rare (popmax 0.000763%, nfe)
Conditions
2
cardiomyopathy

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation/SpliceAI carries the signal.
Splicing
SpliceAIΔ0.21acceptor loss, 3 bp away · masked 0 · deltas
Constraint at this position
ConservationphyloP 2.8GERP 0.12, phastCons 1
Overall
CADD8.462PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.000763% European (non-Finnish) · 9/1,179,868 alleles
Filtering AF 0.000359% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00026%
Overall 0.000558% 9/1,613,946 alleles · very rare exomes 9/1,461,660 · genomes 0/152,286 · 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
RYR2
Protein
p.Val663=
Coding
c.1989C>G
MANE Select
NM_001035
dbSNP
rs2545834964
Type
single nucleotide variant
Location
chr1:237496538 (GRCh38)
Gene constraint
LOEUF 0.424 · pLI 1.00 · ClinGen HI 0/3 (gnomAD)
Residue 663
the b30.2/spry 1 domain
Full RYR2 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/ryr2-p-val663 (accessed [today's date]).

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