Is VCL p.Pro840= (c.2520T>G) pathogenic?

VCL p.Pro840= (c.2520T>G) is classified Likely benign in VCL (ClinVar, Multiple submitters, 2 submitters; last evaluated 2024-12-23). Very rare (popmax 0.00167%, amr); Associated with cardiomyopathy.

What condition is associated with VCL p.Pro840= (c.2520T>G)?

VCL p.Pro840= (c.2520T>G) is associated with cardiomyopathy, dilated cardiomyopathy 1W (ClinVar).

How common is VCL p.Pro840= (c.2520T>G) in the general population?

VCL p.Pro840= (c.2520T>G) is very rare (popmax 0.00167%, amr) (gnomAD).

VCL p.Pro840=

c.2520T>G · rs777218777 · VCV1329300

Likely benign Multiple submitters

Classification

Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

gnomAD v4.1

Rare

very rare (popmax 0.00167%, amr)

Conditions

cardiomyopathy

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 3.5	GERP 2.6, phastCons 1
Overall
CADD	12.7	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00167% Admixed American · 1/60,018 alleles

Overall 0.000124% 2/1,614,200 alleles · very rare exomes 2/1,461,890 · genomes 0/152,310 · joint denominator

Ancestry group	Frequency	1 in
Admixed Americangrpmax	0.00167%	60,018
European (non-Finnish)	8.47e-05%	1,180,032

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.Pro840=
Coding: c.2520T>G
MANE Select: NM_014000
dbSNP: rs777218777
Type: single nucleotide variant
Location: chr10:74107315 (GRCh38)
Gene constraint: LOEUF 0.461 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 86.69 · 37 PDB
Residue 840: the 'linker (pro-rich)' region

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

Disease context

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

Also linked: dilated cardiomyopathy 1W

Similar variants

VCL p.Pro840Ala Uncertain significance ★ ⚠ same residue
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

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-pro840 (accessed [today's date]).

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