Is COMTD1 p.Arg41Pro (c.122G>C) pathogenic?

COMTD1 p.Arg41Pro (c.122G>C) is classified Uncertain significance in COMTD1 (ClinVar, Single submitter, 1 submitter; last evaluated 2023-05-08). AlphaMissense: likely benign (0.0771); Very rare (popmax 0.00153%, nfe).

How common is COMTD1 p.Arg41Pro (c.122G>C) in the general population?

COMTD1 p.Arg41Pro (c.122G>C) is very rare (popmax 0.00153%, nfe) (gnomAD).

What do computational predictors say about COMTD1 p.Arg41Pro (c.122G>C)?

AlphaMissense predicts likely benign (score 0.0771) — an in-silico prediction, not a clinical call.

COMTD1 p.Arg41Pro

c.122G>C · rs537824558 · VCV2545199

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0771 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00153%, nfe)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.0771	likely benign
REVEL	0.213	benign-leaning
SaProt	LLR -6.51	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 1.8	GERP -0.79, phastCons 0.031
Regional constraint	o/e 1.02	unconstrained · MANE · 1,852 bp · p 0.73 · regional, not allelic
Overall
CADD	15.55	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 0.00153% European (non-Finnish) · 18/1,174,934 alleles

Filtering AF 0.000957% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00079%

Overall 0.00124% 18/1,447,962 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: COMTD1
Protein: p.Arg41Pro
Coding: c.122G>C
MANE Select: NM_144589
dbSNP: rs537824558
Type: single nucleotide variant
Location: chr10:75235716 (GRCh38)
Gene constraint: LOEUF 1.869 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 89.67 · 1 PDB

Full COMTD1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

COMTD1 p.Arg41Gln Uncertain significance ★ ⚠ same residue
COMTD1 p.Arg41Trp Uncertain significance ★ ⚠ same residue
COMTD1 p.Ala126Thr Uncertain significance ★ ⚠ same type
COMTD1 p.Ala126Val Uncertain significance ★ ⚠ same type
COMTD1 p.Ala186Thr Uncertain significance ★ ⚠ same type
COMTD1 p.Ala91Gly Uncertain significance ★ ⚠ same type
COMTD1 p.Arg129Leu Uncertain significance ★ ⚠ same type
COMTD1 p.Arg129Pro 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/comtd1-p-arg41pro (accessed [today's date]).

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