Is CAV3 p.Arg74= (c.222T>C) pathogenic?

CAV3 p.Arg74= (c.222T>C) is classified Likely benign in CAV3 (ClinVar, Single submitter, 1 submitter; last evaluated 2024-10-22). Absent from gnomAD v4.1; Associated with Cardiovascular phenotype.

What condition is associated with CAV3 p.Arg74= (c.222T>C)?

CAV3 p.Arg74= (c.222T>C) is associated with Cardiovascular phenotype (ClinVar).

How common is CAV3 p.Arg74= (c.222T>C) in the general population?

CAV3 p.Arg74= (c.222T>C) is absent from gnomAD v4.1 (gnomAD).

CAV3 p.Arg74=

c.222T>C · VCV3485526

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Absent

absent from gnomAD v4.1

Conditions

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 0.014	GERP -4.3, phastCons 0.83
Overall
CADD	8.588	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: CAV3
Protein: p.Arg74=
Coding: c.222T>C
MANE Select: NM_033337
Type: single nucleotide variant
Location: chr3:8745633 (GRCh38)
Gene constraint: LOEUF 1.064 · pLI 0.04 (gnomAD)
Structure: AlphaFold pLDDT 88.54
Residue 74: the 'required for interaction with dag1' region

Full CAV3 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

Cardiovascular phenotype — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

CAV3 p.Arg74His Uncertain significance ★★ ⚠ same residue
CAV3 p.Arg74Cys Uncertain significance ★ ⚠ same residue
CAV3 p.Arg74Gly Uncertain significance ★ ⚠ same residue
CAV3 c.114+5G>C Uncertain significance ★★ same condition
CAV3 p.Ala102Val Uncertain significance ★★ ⚠ same condition
CAV3 p.Ala134Glu Uncertain significance ★★ ⚠ same condition
CAV3 p.Ala134Pro Uncertain significance ★★ ⚠ same condition
CAV3 p.Ala93Ser Uncertain significance ★★ ⚠ 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/cav3-p-arg74 (accessed [today's date]).

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