Is CCN2 p.Cys160Ser (c.479G>C) pathogenic?

CCN2 p.Cys160Ser (c.479G>C) is classified Uncertain significance in CCN2 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-03-01). AlphaMissense: likely pathogenic (0.9943); Absent from gnomAD v4.1.

How common is CCN2 p.Cys160Ser (c.479G>C) in the general population?

CCN2 p.Cys160Ser (c.479G>C) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about CCN2 p.Cys160Ser (c.479G>C)?

AlphaMissense predicts likely pathogenic (score 0.9943) — an in-silico prediction, not a clinical call.

CCN2 p.Cys160Ser

c.479G>C · VCV3778150

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.9943 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

3/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.9943	likely pathogenic · top 7% in CCN2
REVEL	0.96	strongly pathogenic-leaning
SaProt	LLR -15.21	damaging
⇒ AlphaMissense, REVEL and SaProt all call this damaging.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 7.7	GERP 2.9, phastCons 1
Regional constraint	o/e 0.94	unconstrained · MANE · 1,905 bp · p 0.18 · regional, not allelic
Overall
CADD	32.0	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean damaging — a triage signal, not a reclassification

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: CCN2
Protein: p.Cys160Ser
Coding: c.479G>C
MANE Select: NM_001901
Type: single nucleotide variant
Location: chr6:131950354 (GRCh38)
Gene constraint: LOEUF 1.05 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 78.43
Residue 160: the vwfc domain

Full CCN2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

CCN2 c.290-6C>T Benign ★★ same type
CCN2 c.67-4G>A Likely benign ★★ same type
CCN2 p.Ala101Ser Uncertain significance ★ ⚠ same type
CCN2 p.Ala208Thr Uncertain significance ★ ⚠ same type
CCN2 p.Ala45Val Uncertain significance ★ ⚠ same type
CCN2 p.Ala61Thr Uncertain significance ★ ⚠ same type
CCN2 p.Arg34Gly Uncertain significance ★ ⚠ same type
CCN2 p.Arg42Gly 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/ccn2-p-cys160ser (accessed [today's date]).

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