Is COMMD2 p.Tyr67Cys (c.200A>G) pathogenic?

COMMD2 p.Tyr67Cys (c.200A>G) is classified Uncertain significance in COMMD2 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-08-25). AlphaMissense: likely benign (0.1524); Rare (popmax 0.148%, mid).

How common is COMMD2 p.Tyr67Cys (c.200A>G) in the general population?

COMMD2 p.Tyr67Cys (c.200A>G) is rare (popmax 0.148%, mid) (gnomAD).

What do computational predictors say about COMMD2 p.Tyr67Cys (c.200A>G)?

AlphaMissense predicts likely benign (score 0.1524) — an in-silico prediction, not a clinical call.

COMMD2 p.Tyr67Cys

c.200A>G · rs146703562 · VCV2514054

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1524 · ACMG-weighted

gnomAD v4.1

Rare

rare (popmax 0.148%, mid)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.1524	likely benign
REVEL	0.174	moderately benign-leaning
SaProt	LLR -8.47	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 7.8	GERP 1.8, phastCons 1
Regional constraint	o/e 0.96	unconstrained · MANE · 11 kb · p 0.52 · regional, not allelic
Overall
CADD	27.3	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 0.148% Middle Eastern · 9/6,062 alleles

Filtering AF 0.0774% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0578%

Overall 0.051% 823/1,614,130 alleles · rare

Ancestry group	Frequency	1 in
Middle Easterngrpmax	0.148%	674
South Asian	0.0659%	1,518
European (non-Finnish)	0.0599%	1,669
Remaining individualsnot grpmax-eligible	0.0432%	2,315
Admixed American	0.0183%	5,457
African / African-American	0.012%	8,341

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: COMMD2
Protein: p.Tyr67Cys
Coding: c.200A>G
MANE Select: NM_016094
dbSNP: rs146703562
Type: single nucleotide variant
Location: chr3:149751431 (GRCh38)
Gene constraint: LOEUF 1.611 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 89.00 · 3 PDB
Residue 67: an α-helix

Full COMMD2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

COMMD2 p.Ala118Val Uncertain significance ★ ⚠ same type
COMMD2 p.Ala136Thr Uncertain significance ★ ⚠ same type
COMMD2 p.Ala170Thr Uncertain significance ★ ⚠ same type
COMMD2 p.Arg130Gln Uncertain significance ★ ⚠ same type
COMMD2 p.Arg196His Uncertain significance ★ ⚠ same type
COMMD2 p.Arg196Leu Uncertain significance ★ ⚠ same type
COMMD2 p.Arg29Leu Uncertain significance ★ ⚠ same type
COMMD2 p.Arg29Trp 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/commd2-p-tyr67cys (accessed [today's date]).

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