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DNMT3A p.Phe732del

c.2190CTT[1] · rs761103716 · VCV2629187

Uncertain significance Multiple submitters
Classification
Uncertain significance
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
very rare (popmax 0.00668%, eas)
Conditions
2
DNMT3A-related disorder

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI—not assessed · substitutions only
Constraint at this position
ConservationphyloP 4.8GERP 0.78, phastCons 1
Overall
CADD21.4PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00668% East Asian · 3/44,878 alleles
Filtering AF 0.00256% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00225%
Overall 0.00323% 52/1,611,398 alleles · very rare
Ancestry group Frequency 1 in
East Asiangrpmax 0.00668% 14,959
Finnishnot grpmax-eligible 0.00626% 15,971
Ashkenazi Jewishnot grpmax-eligible 0.00341% 29,368
European (non-Finnish) 0.00339% 29,468
Admixed American 0.00168% 59,656
Remaining individualsnot grpmax-eligible 0.0016% 62,370
African / African-American 0.00133% 74,956
South Asian 0.0011% 90,636

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.Phe732del
Coding
c.2190CTT[1]
MANE Select
NM_022552
dbSNP
rs761103716
Type
Microsatellite
Location
chr2:25240429 (GRCh38)
Gene constraint
LOEUF 1.998 · pLI <0.01 · ClinGen HI 3/3 (gnomAD)
Structure
AlphaFold pLDDT 73.97 · 47 PDB
Residue 732
an α-helix; the sam-dependent mtase c5-type domain
Full DNMT3A gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

DNMT3A-related disorder

Also linked: Tatton-Brown-Rahman overgrowth syndrome

Similar variants

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-phe732del (accessed [today's date]).

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