Is VCL p.Arg341Thr (c.1022G>C) pathogenic?

VCL p.Arg341Thr (c.1022G>C) is classified Uncertain significance in VCL (ClinVar, Single submitter, 1 submitter; last evaluated 2024-09-29). AlphaMissense: likely pathogenic (0.5909); Very rare (popmax 8.48e-05%, nfe); Associated with dilated cardiomyopathy 1W.

What condition is associated with VCL p.Arg341Thr (c.1022G>C)?

VCL p.Arg341Thr (c.1022G>C) is associated with dilated cardiomyopathy 1W (ClinVar).

How common is VCL p.Arg341Thr (c.1022G>C) in the general population?

VCL p.Arg341Thr (c.1022G>C) is very rare (popmax 8.48e-05%, nfe) (gnomAD).

How is Familial isolated dilated cardiomyopathy inherited?

Typically Autosomal dominant, Autosomal recessive (Orphanet). A genetic counselor can assess individual risk for a family.

What do computational predictors say about VCL p.Arg341Thr (c.1022G>C)?

AlphaMissense predicts likely pathogenic (score 0.5909) — an in-silico prediction, not a clinical call.

VCL p.Arg341Thr

c.1022G>C · VCV3706839

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.5909 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 8.48e-05%, nfe)

Missense predictors

2/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

dilated cardiomyopathy 1W

Computational evidence

Protein change
AlphaMissense	0.5909	likely pathogenic
REVEL	0.2	benign-leaning
SaProt	LLR -10.00	damaging
⇒ AlphaMissense and SaProt call this damaging; REVEL does not.
Splicing
SpliceAI	Δ0.98	donor loss · deltas
Pangolin	Δ0.81	loss · gain 0.05 · agrees with SpliceAI · independent
Constraint at this position
Conservation	phyloP 12	GERP 2.5, phastCons 1
Regional constraint	o/e 0.82	unconstrained · MANE · 38 kb · p 3e-08 · regional, not allelic
Overall
CADD	34.0	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 8.48e-05% European (non-Finnish) · 1/1,179,794 alleles

Overall 6.84e-05% 1/1,461,438 alleles · very rare

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: VCL
Protein: p.Arg341Thr
Coding: c.1022G>C
MANE Select: NM_014000
Type: single nucleotide variant
Location: chr10:74083513 (GRCh38)
Gene constraint: LOEUF 0.461 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 86.69 · 37 PDB
Residue 341: the 'n-terminal globular head' region; the '3 x 112 aa tandem repeats' region; a turn

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

Disease context

dilated cardiomyopathy 1W — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Familial isolated dilated cardiomyopathy (Orphanet):

Inheritance: Autosomal dominant, Autosomal recessive, Mitochondrial inheritance
Onset: All ages
Prevalence: 1-9 / 100 000 (Europe)

Similar variants

VCL c.1176+4G>C Uncertain significance ★★ same condition
VCL c.1352+5G>A Uncertain significance ★★ same condition
VCL c.1543+1G>T Uncertain significance ★★ same condition
VCL c.1543+4A>G Uncertain significance ★★ same condition
VCL c.1743+6A>G Uncertain significance ★★ same condition
VCL c.1744-1G>T Uncertain significance ★★ same condition
VCL c.2022+5G>T Uncertain significance ★★ same condition
VCL c.2023-1G>C 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/vcl-p-arg341thr (accessed [today's date]).

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