DNMT3A p.Pro777=
c.2331T>C · rs758014471 · VCV740062
Likely benign
Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 3 submitters
gnomAD v4.1
Rare
ultra-rare (popmax 0.026%, nfe)
Conditions
2
Inborn genetic diseases
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| SpliceAI | — | not assessed · no allele here is in the release |
|---|---|---|
| Constraint at this position | ||
| Conservation | phyloP 1.6 | GERP -1.7, phastCons 1 |
| Overall | ||
| CADD | 9.528 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.026%
European (non-Finnish) · 307/1,179,826 alleles
Filtering AF
0.0236%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0227%
Overall
0.02%
322/1,613,712 alleles · ultra-rare
exomes 310/1,461,518 · genomes 12/152,194 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| European (non-Finnish)grpmax | 0.026% | 3,843 |
| Remaining individualsnot grpmax-eligible | 0.0144% | 6,940 |
| African / African-American | 0.00667% | 14,984 |
| East Asian | 0.00223% | 44,888 |
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
- DNMT3A
- Protein
- p.Pro777=
- Coding
- c.2331T>C
- MANE Select
- NM_022552
- dbSNP
- rs758014471
- Type
- single nucleotide variant
- Location
- chr2:25239207 (GRCh38)
- Gene constraint
- LOEUF 1.998 · pLI <0.01 · ClinGen HI 3/3 (gnomAD)
- Structure
- AlphaFold pLDDT 73.97 · 47 PDB
- Residue 777
- the sam-dependent mtase c5-type domain
Similar variants
- DNMT3A p.Pro777His Likely pathogenic ★ same residue
- DNMT3A c.1667+1G>A Likely pathogenic ★★ same condition
- DNMT3A c.1937-2A>G Pathogenic ★★ same condition
- DNMT3A c.2478+1G>A Pathogenic/Likely pathogenic ★★ same condition
- DNMT3A c.2479-1G>A Likely pathogenic ★★ same condition
- DNMT3A p.Arg143Ter Pathogenic ★★ same condition
- DNMT3A p.Arg301Trp Pathogenic/Likely pathogenic ★★ same condition
- DNMT3A p.Arg320Ter Pathogenic/Likely pathogenic ★★ same condition
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/dnmt3a-p-pro777 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown