Is CD6 p.Ala22Asp (c.65C>A) pathogenic?

CD6 p.Ala22Asp (c.65C>A) is classified Uncertain significance in CD6 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-11-12). AlphaMissense: likely benign (0.1738); Very rare (popmax 0.00668%, afr).

How common is CD6 p.Ala22Asp (c.65C>A) in the general population?

CD6 p.Ala22Asp (c.65C>A) is very rare (popmax 0.00668%, afr) (gnomAD).

What do computational predictors say about CD6 p.Ala22Asp (c.65C>A)?

AlphaMissense predicts likely benign (score 0.1738) — an in-silico prediction, not a clinical call.

CD6 p.Ala22Asp

c.65C>A · rs766424297 · VCV2400890

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1738 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00668%, afr)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.1738	likely benign
REVEL	0.076	moderately benign-leaning
SaProt	LLR -7.97	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 0.25	GERP 0.63
Regional constraint	o/e 0.86	unconstrained · MANE · 47 kb · p 2.2e-05 · regional, not allelic
Overall
CADD	18.12	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — 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

Grpmax group 0.00668% African / African-American · 5/74,872 alleles

Filtering AF 0.00255% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00162%

Overall 0.000311% 5/1,608,566 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: CD6
Protein: p.Ala22Asp
Coding: c.65C>A
MANE Select: NM_006725
dbSNP: rs766424297
Type: single nucleotide variant
Location: chr11:61006589 (GRCh38)
Gene constraint: LOEUF 1.03 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 66.14 · 1 PDB
Residue 22: the 'disordered' region

Full CD6 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

CD6 p.Ala151Val Uncertain significance ★ ⚠ same type
CD6 p.Ala160Val Uncertain significance ★ ⚠ same type
CD6 p.Ala235Thr Uncertain significance ★ ⚠ same type
CD6 p.Ala311Glu Uncertain significance ★ ⚠ same type
CD6 p.Ala431Asp Uncertain significance ★ ⚠ same type
CD6 p.Ala78Thr Uncertain significance ★ ⚠ same type
CD6 p.Arg220Ser Uncertain significance ★ ⚠ same type
CD6 p.Arg266His 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/cd6-p-ala22asp (accessed [today's date]).

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