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RYR1 p.Arg4306Gln

c.12917G>A · rs2145844700 · VCV1522423

Uncertain significance Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
AlphaMissense
likely benign
0.1514 · ACMG-weighted
gnomAD v4.1
Rare
very rare (popmax 0.000958%, nfe)
Missense predictors
0/2 damaging
AlphaMissense, REVEL · SaProt no call
Conditions
1
RYR1-related disorder

Computational evidence

Protein change
AlphaMissense0.1514likely benign
REVEL0.281benign-leaning
SaProt—not scored · why
⇒ AlphaMissense and REVEL both call this tolerated; SaProt makes no call.
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP 5.2GERP 0.094, phastCons 1
Regional constrainto/e 0.99unconstrained · MANE · 22 kb · p 0.81 · regional, not allelic
Overall
CADD21.7PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — a triage signal, not a reclassification

AlphaMissense carries the ACMG weight for missense; REVEL is an independent agreement signal.

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.000958% European (non-Finnish) · 8/835,218 alleles
Filtering AF 0.000412% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000298%
Overall 0.000807% 8/991,050 alleles · very rare exomes 8/844,502 · genomes 0/146,548 · 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
RYR1
Protein
p.Arg4306Gln
Coding
c.12917G>A
MANE Select
NM_000540
dbSNP
rs2145844700
Type
single nucleotide variant
Location
chr19:38565251 (GRCh38)
Gene constraint
LOEUF 0.644 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Full RYR1 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/ryr1-p-arg4306gln (accessed [today's date]).

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