Is CAPN5 p.Arg21Gln (c.62G>A) pathogenic?

CAPN5 p.Arg21Gln (c.62G>A) is classified Conflicting classifications of pathogenicity in CAPN5 (ClinVar, Conflicting submitters, 2 submitters; last evaluated 2025-03-17). AlphaMissense: likely benign (0.0656); Ultra-rare (popmax 0.0164%, mid).

How common is CAPN5 p.Arg21Gln (c.62G>A) in the general population?

CAPN5 p.Arg21Gln (c.62G>A) is ultra-rare (popmax 0.0164%, mid) (gnomAD).

What do computational predictors say about CAPN5 p.Arg21Gln (c.62G>A)?

AlphaMissense predicts likely benign (score 0.0656) — an in-silico prediction, not a clinical call.

CAPN5 p.Arg21Gln

c.62G>A · VCV3606191

Conflicting classifications of pathogenicity Conflicting submitters

Classification

Conflicting classifications of pathogenicity

ClinVar

Review

Conflicting submitters ★☆☆☆

ClinVar · 2 submitters

AlphaMissense

likely benign

0.0656 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.0164%, mid)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.0656	likely benign
REVEL	0.028	moderately benign-leaning
SaProt	LLR -6.08	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 2.3	GERP -3.2, phastCons 1
Regional constraint	o/e 0.89	unconstrained · MANE · 39 kb · p 0.00098 · regional, not allelic
Overall
CADD	14.02	PHRED · no single calibrated threshold — expert panels disagree

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0164% Middle Eastern · 1/6,084 alleles

Filtering AF 0.0053% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0049%

Overall 0.00601% 97/1,613,686 alleles · ultra-rare

Ancestry group	Frequency	1 in
Middle Easterngrpmax	0.0164%	6,084
African / African-American	0.00934%	10,705
Ashkenazi Jewishnot grpmax-eligible	0.00676%	14,803
South Asian	0.00659%	15,181
European (non-Finnish)	0.00653%	15,325
Remaining individualsnot grpmax-eligible	0.0032%	31,240
Admixed American	0.00167%	60,010
Finnishnot grpmax-eligible	0.00157%	63,658

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: CAPN5
Protein: p.Arg21Gln
Coding: c.62G>A
MANE Select: NM_004055
Type: single nucleotide variant
Location: chr11:77084948 (GRCh38)
Gene constraint: LOEUF 0.928 · pLI <0.01 · ClinGen HI 0/3 (gnomAD)
Structure: AlphaFold pLDDT 91.71 · 1 PDB
Residue 21: an α-helix

Full CAPN5 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

CAPN5 p.Arg21Trp Uncertain significance ★★ ⚠ same residue
CAPN5 p.Arg21= Likely benign ★ same residue
CAPN5 p.Arg243Leu Pathogenic ★★ ⚠ same type
CAPN5 p.Arg289Trp Pathogenic ★★ ⚠ same type
CAPN5 p.Ala118Val Uncertain significance ★★ ⚠ same type
CAPN5 p.Ala183Ser Uncertain significance ★★ ⚠ same type
CAPN5 p.Ala185Val Uncertain significance ★★ ⚠ same type
CAPN5 p.Ala237Val Uncertain significance ★★ ⚠ same type

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/capn5-p-arg21gln (accessed [today's date]).

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