Is COL5A2 p.Val95Ala (c.284T>C) pathogenic?

COL5A2 p.Val95Ala (c.284T>C) is classified Uncertain significance in COL5A2 (ClinVar, Single submitter, 1 submitter; last evaluated 2024-04-26). AlphaMissense: likely benign (0.1681); Absent from gnomAD v4.1; Associated with Ehlers-Danlos syndrome, classic type, 1.

What condition is associated with COL5A2 p.Val95Ala (c.284T>C)?

COL5A2 p.Val95Ala (c.284T>C) is associated with Ehlers-Danlos syndrome, classic type, 1 (ClinVar).

How common is COL5A2 p.Val95Ala (c.284T>C) in the general population?

COL5A2 p.Val95Ala (c.284T>C) is absent from gnomAD v4.1 (gnomAD).

How is Classical Ehlers-Danlos syndrome inherited?

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

What do computational predictors say about COL5A2 p.Val95Ala (c.284T>C)?

AlphaMissense predicts likely benign (score 0.1681) — an in-silico prediction, not a clinical call.

COL5A2 p.Val95Ala

c.284T>C · VCV3651278

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1681 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

1/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

Ehlers-Danlos syndrome, classic type, 1

Computational evidence

Protein change
AlphaMissense	0.1681	likely benign
REVEL	0.28	benign-leaning
SaProt	LLR -10.95	damaging
⇒ SaProt calls this damaging; AlphaMissense and REVEL do not.
Splicing
SpliceAI	<0.2	no splice effect predicted · four deltas, not one · how we know
Constraint at this position
Conservation	phyloP 3.9	GERP -0.03, phastCons 0.98
Regional constraint	o/e 0.81	unconstrained · MANE · 146 kb · p 1.2e-16 · regional, not allelic
Overall
CADD	21.4	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

Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.

Variant & gene context

Gene: COL5A2
Protein: p.Val95Ala
Coding: c.284T>C
MANE Select: NM_000393
Type: single nucleotide variant
Location: chr2:189110263 (GRCh38)
Gene constraint: LOEUF 0.106 · pLI 1.00 · ClinGen HI 0/3 (gnomAD)
Structure: AlphaFold pLDDT 53.15
Residue 95: the vwfc domain

Full COL5A2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

Ehlers-Danlos syndrome, classic type, 1 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Classical Ehlers-Danlos syndrome (Orphanet):

Inheritance: Autosomal dominant
Onset: Childhood, Infancy, Neonatal
Prevalence: 1-9 / 100 000 (Worldwide)

Similar variants

COL5A2 p.Val95Asp Uncertain significance ★★ ⚠ same residue
COL5A2 p.Val95Leu Conflicting classifications of pathogenicity ★ ⚠ same residue
COL5A2 c.1159-1G>A Likely pathogenic ★★ same condition
COL5A2 c.369+1G>T Likely pathogenic ★★ same condition
COL5A2 p.Gly252Cys Pathogenic/Likely pathogenic ★★ same condition
COL5A2 p.Pro659= Pathogenic ★★ same condition
COL5A2 c.1005+4T>C Uncertain significance ★★ same condition
COL5A2 c.1618-7G>A 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/col5a2-p-val95ala (accessed [today's date]).

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