CHRM3 p.Val542=
c.1626G>A · rs765946218 · VCV797119
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00381%, nfe)
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| SpliceAI | <0.2 | no splice effect predicted · four deltas, not one · how we know |
|---|---|---|
| Constraint at this position | ||
| Conservation | phyloP 5.8 | GERP 0.11, phastCons 1 |
| Overall | ||
| CADD | 6.909 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00381%
European (non-Finnish) · 45/1,180,032 alleles
Filtering AF
0.00291%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0026%
Overall
0.00285%
46/1,614,116 alleles · very rare
exomes 46/1,461,888 · genomes 0/152,228 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| European (non-Finnish)grpmax | 0.00381% | 26,223 |
| East Asian | 0.00223% | 44,868 |
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
- CHRM3
- Protein
- p.Val542=
- Coding
- c.1626G>A
- MANE Select
- NM_001375978
- dbSNP
- rs765946218
- Type
- single nucleotide variant
- Location
- chr1:239909077 (GRCh38)
- Gene constraint
- LOEUF 0.42 · pLI 1.00 · ClinGen HI 0/3 (gnomAD)
- Structure
- AlphaFold pLDDT 67.30 · 5 PDB
- Residue 542
- an α-helix
Similar variants
- CHRM3 p.Val542Met Uncertain significance ★ ⚠ same residue
- CHRM3 p.Ala585Thr Uncertain significance ★★ ⚠ same type
- CHRM3 p.Ala589Asp Uncertain significance ★★ ⚠ same type
- CHRM3 p.Arg310His Uncertain significance ★★ ⚠ same type
- CHRM3 p.Arg44Gln Uncertain significance ★★ ⚠ same type
- CHRM3 p.Arg569Cys Uncertain significance ★★ ⚠ same type
- CHRM3 p.Arg584His Uncertain significance ★★ ⚠ same type
- CHRM3 p.Asn339Lys 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/chrm3-p-val542 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown