CNOT3 p.Gly400=
c.1200C>T · VCV3698723
Likely benign
Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
ultra-rare (popmax 0.0257%, afr)
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| REVEL | 0.051 | moderately benign-leaning |
|---|---|---|
| Splicing | ||
| SpliceAI | — | not assessed · no allele here is in the release |
| Constraint at this position | ||
| Conservation | phyloP 0.51 | GERP -1.4, phastCons 0.99 |
| Overall | ||
| CADD | 0.775 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.0257%
African / African-American · 19/73,970 alleles
Filtering AF
0.0168%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0139%
Overall
0.00141%
22/1,565,122 alleles · ultra-rare
| Ancestry group | Frequency | 1 in |
|---|---|---|
| African / African-Americangrpmax | 0.0257% | 3,893 |
| European (non-Finnish) | 0.00026% | 384,435 |
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
- CNOT3
- Protein
- p.Gly400=
- Coding
- c.1200C>T
- MANE Select
- NM_014516
- Type
- single nucleotide variant
- Location
- chr19:54148453 (GRCh38)
- Gene constraint
- LOEUF 0.057 · pLI 1.00 · ClinGen HI 0/3 (gnomAD)
- Structure
- AlphaFold pLDDT 68.53 · 6 PDB
- Residue 400
- the 'disordered' region
Similar variants
- CNOT3 c.1904+2T>C Pathogenic/Likely pathogenic ★★ same type
- CNOT3 p.Arg697Ter Pathogenic ★★ same type
- CNOT3 p.Arg81Ser Likely pathogenic ★★ same type
- CNOT3 p.Arg96Ter Pathogenic/Likely pathogenic ★★ same type
- CNOT3 p.Thr86= Likely pathogenic ★★ same type
- CNOT3 c.1905-7C>G Uncertain significance ★★ same type
- CNOT3 c.483+6T>G Uncertain significance ★★ same type
- CNOT3 p.Ala376Thr 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/cnot3-p-gly400 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown