Is VCAN p.Val2178= (c.6534T>C) pathogenic?

VCAN p.Val2178= (c.6534T>C) is classified Likely benign in VCAN (ClinVar, Multiple submitters, 2 submitters; last evaluated 2024-09-30). Ultra-rare (popmax 0.0112%, nfe).

How common is VCAN p.Val2178= (c.6534T>C) in the general population?

VCAN p.Val2178= (c.6534T>C) is ultra-rare (popmax 0.0112%, nfe) (gnomAD).

VCAN p.Val2178=

c.6534T>C · rs139909266 · VCV1148759

Likely benign Multiple submitters

Classification

Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

gnomAD v4.1

Rare

ultra-rare (popmax 0.0112%, nfe)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	<0.2	no splice effect predicted · four deltas, not one · how we know
Constraint at this position
Conservation	phyloP 1.6	GERP -3.9, phastCons 0.011
Overall
CADD	2.855	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0112% European (non-Finnish) · 132/1,179,998 alleles

Filtering AF 0.00961% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00904%

Overall 0.00849% 137/1,613,952 alleles · ultra-rare exomes 128/1,461,744 · genomes 9/152,208 · joint denominator

Ancestry group	Frequency	1 in
European (non-Finnish)grpmax	0.0112%	8,939
African / African-American	0.00534%	18,735
Remaining individualsnot grpmax-eligible	0.0016%	62,474

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: VCAN
Protein: p.Val2178=
Coding: c.6534T>C
MANE Select: NM_004385
dbSNP: rs139909266
Type: single nucleotide variant
Location: chr5:83539537 (GRCh38)
Gene constraint: LOEUF 0.223 · pLI 1.00 · ClinGen HI 1/3 (gnomAD)
Residue 2178: the 'gag-beta' region; the 'disordered' region

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

Similar variants

VCAN c.4004-1G>A Pathogenic ★★ same type
VCAN c.4004-2A>C Pathogenic ★★ same type
VCAN c.4004-2A>G Pathogenic ★★ same type
VCAN c.4004-5T>C Pathogenic ★★ same type
VCAN c.9265+1G>C Pathogenic ★★ same type
VCAN c.9266-5G>A Uncertain significance ★★ same type
VCAN c.9493+5G>A Uncertain significance ★★ same type
VCAN c.9493+5G>T 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/vcan-p-val2178 (accessed [today's date]).

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