Is RYR1 p.Pro326= (c.978C>T) pathogenic?

RYR1 p.Pro326= (c.978C>T) is classified Likely benign in RYR1 (ClinVar, Single submitter, 1 submitter; last evaluated 2023-08-05). Absent from gnomAD v4.1; Associated with RYR1-related disorder.

What condition is associated with RYR1 p.Pro326= (c.978C>T)?

RYR1 p.Pro326= (c.978C>T) is associated with RYR1-related disorder (ClinVar).

How common is RYR1 p.Pro326= (c.978C>T) in the general population?

RYR1 p.Pro326= (c.978C>T) is absent from gnomAD v4.1 (gnomAD).

RYR1 p.Pro326=

c.978C>T · rs2513996848 · VCV2750359

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Absent

absent from gnomAD v4.1

Conditions

RYR1-related disorder

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 -0.44	GERP -3.8, phastCons 0.02
Overall
CADD	7.385	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.

Variant & gene context

Gene: RYR1
Protein: p.Pro326=
Coding: c.978C>T
MANE Select: NM_000540
dbSNP: rs2513996848
Type: single nucleotide variant
Location: chr19:38448669 (GRCh38)
Gene constraint: LOEUF 0.644 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Residue 326: the mir 4 domain

Full RYR1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

RYR1-related disorder — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

RYR1 p.Pro326Leu Uncertain significance ★ same residue
RYR1 c.10627-1G>C Pathogenic/Likely pathogenic ★★ same condition
RYR1 c.14647-1G>C Likely pathogenic ★★ same condition
RYR1 c.14869-1G>T Pathogenic/Likely pathogenic ★★ same condition
RYR1 c.2683-1G>A Pathogenic/Likely pathogenic ★★ same condition
RYR1 c.2870+1G>A Pathogenic/Likely pathogenic ★★ same condition
RYR1 c.3381+1G>A Pathogenic ★★ same condition
RYR1 c.4935-2A>T 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/ryr1-p-pro326 (accessed [today's date]).

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