Is CC2D1B p.Ala297Val (c.890C>T) pathogenic?

CC2D1B p.Ala297Val (c.890C>T) is classified Uncertain significance in CC2D1B (ClinVar, Single submitter, 1 submitter; last evaluated 2023-03-07). AlphaMissense: ambiguous (0.3835); Very rare (popmax 0.00503%, amr).

How common is CC2D1B p.Ala297Val (c.890C>T) in the general population?

CC2D1B p.Ala297Val (c.890C>T) is very rare (popmax 0.00503%, amr) (gnomAD).

What do computational predictors say about CC2D1B p.Ala297Val (c.890C>T)?

AlphaMissense predicts ambiguous (score 0.3835) — an in-silico prediction, not a clinical call.

CC2D1B p.Ala297Val

c.890C>T · rs1431952512 · VCV2473754

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

ambiguous

0.3835 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00503%, amr)

Computational evidence

Protein change
AlphaMissense	0.3835	ambiguous
REVEL	0.476	indeterminate
SaProt	LLR -15.60	damaging
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 12	GERP 1.8, phastCons 1
Regional constraint	o/e 1.04	unconstrained · MANE · 11 kb · p 0.15 · regional, not allelic
Overall
CADD	28.5	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 0.00503% Admixed American · 3/59,588 alleles

Filtering AF 0.00134% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00067%

Overall 0.000206% 3/1,458,330 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: CC2D1B
Protein: p.Ala297Val
Coding: c.890C>T
MANE Select: NM_001330585
dbSNP: rs1431952512
Type: single nucleotide variant
Location: chr1:52359757 (GRCh38)
Gene constraint: LOEUF 0.978 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 71.98

Full CC2D1B gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

CC2D1B p.Gly790= Benign ★★ same type
CC2D1B p.His674Tyr Likely benign ★★ same type
CC2D1B p.Leu511= Benign ★★ same type
CC2D1B p.Ala103Gly Uncertain significance ★ ⚠ same type
CC2D1B p.Ala180Ser Uncertain significance ★ ⚠ same type
CC2D1B p.Ala181Thr Uncertain significance ★ ⚠ same type
CC2D1B p.Ala181Val Uncertain significance ★ ⚠ same type
CC2D1B p.Ala208Thr 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/cc2d1b-p-ala297val (accessed [today's date]).

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