Atlas One · Host Biology · Scale 03 — Molecular

DNMT3A

DNMT3A encodes de novo DNA methyltransferase 3A; R882H/C dominant-negative hotspot mutations in ~20% of AML and ~40% of CHIP cause focal hypomethylation → HSC clonal expansion; DNMT3A+NPM1+FLT3-ITD is the classic intermediate-risk AML triplet; no direct targeted therapy.

Also known as: DNMT3A, DNA methyltransferase 3A, DNMT3A R882H, DNMT3A mutation, DNMT3A AML, DNMT3A CHIP, epigenetic AML, clonal hematopoiesis DNMT3A

Scale 03 — MolecularScale
draftStatus
2026-06-06Last Reviewed
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dnmt3a

DNMT3A

DNMT3A encodes de novo DNA methyltransferase 3A; R882H/C dominant-negative hotspot mutations in ~20% of AML and ~40% of CHIP cause focal hypomethylation → HSC clonal expansion; DNMT3A+NPM1+FLT3-ITD is the classic intermediate-risk AML triplet; no direct targeted therapy.