Is CAPN5 p.Arg93Trp (c.277C>T) pathogenic?

CAPN5 p.Arg93Trp (c.277C>T) is classified Uncertain significance in CAPN5 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-04-10). AlphaMissense: likely benign (0.271); Ultra-rare (popmax 0.0187%, sas).

How common is CAPN5 p.Arg93Trp (c.277C>T) in the general population?

CAPN5 p.Arg93Trp (c.277C>T) is ultra-rare (popmax 0.0187%, sas) (gnomAD).

What do computational predictors say about CAPN5 p.Arg93Trp (c.277C>T)?

AlphaMissense predicts likely benign (score 0.271) — an in-silico prediction, not a clinical call.

CAPN5 p.Arg93Trp

c.277C>T · rs782477592 · VCV1924212

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.271 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.0187%, sas)

Missense predictors

1/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.271	likely benign
REVEL	0.896	moderately pathogenic-leaning
SaProt	LLR -7.68	tolerated
⇒ REVEL calls this damaging; AlphaMissense and SaProt do not.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 2.6	GERP -0.53, phastCons 1
Regional constraint	o/e 0.89	unconstrained · MANE · 39 kb · p 0.00098 · regional, not allelic
Overall
CADD	32.0	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 0.0187% South Asian · 17/91,052 alleles

Filtering AF 0.0118% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00976%

Overall 0.00521% 84/1,610,972 alleles · ultra-rare

Ancestry group	Frequency	1 in
South Asiangrpmax	0.0187%	5,356
Middle Eastern	0.0165%	6,062
Admixed American	0.00667%	15,000
European (non-Finnish)	0.005%	20,000
Finnishnot grpmax-eligible	0.00164%	61,054
Remaining individualsnot grpmax-eligible	0.0016%	62,450
African / African-American	0.00133%	74,954

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.Arg93Trp
Coding: c.277C>T
MANE Select: NM_004055
dbSNP: rs782477592
Type: single nucleotide variant
Location: chr11:77093793 (GRCh38)
Gene constraint: LOEUF 0.928 · pLI <0.01 · ClinGen HI 0/3 (gnomAD)
Structure: AlphaFold pLDDT 91.71 · 1 PDB
Residue 93: the calpain catalytic domain

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

Similar variants

CAPN5 p.Arg93Gln Uncertain significance ★ ⚠ 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
CAPN5 p.Ala245Val 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-arg93trp (accessed [today's date]).

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