9V36: Human DNMT1

Human DNMT1 (aa 698-1616) bound to hemimethylated dsDNA and Inhibitor DMI26. Determined by electron microscopy at 2.77 Å resolution. Released 18 Mar 2026.

Method
Electron microscopy
Resolution
2.77 Å
Organism
Homo sapiens
Chains
3
Atoms
7,054
Mol. weight
112.24 kDa
Ligands
A1EQT, SAH, ZN
Released
18 Mar 2026

Explore 9V36 in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

9V36 contains 45 α-helices and 60 β-strands across 1 chain. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chain A: 45 helices, 60 β-strands

ElementResiduesLengthSheet
β-strand732-73321
β-strand739-74132
β-strand744-74742
β-strand749-75131
β-strand756-75831
β-strand762-76542
α-helix773-7742
β-strand775-784102
β-strand790-799102
α-helix800-8023
α-helix806-8083
β-strand813-824122
α-helix825-8273
β-strand828-83252
β-strand834-83632
α-helix843-8453
α-helix852-8554
β-strand863-87082
β-strand875-87732
α-helix878-8803
α-helix883-8853
α-helix886-8883
α-helix894-90613
β-strand909-91023
β-strand913-91644
β-strand920-92344
β-strand926-92833
β-strand931-93223
β-strand938-93925
β-strand940-94126
α-helix972-9743
α-helix987-9893
β-strand992-99326
β-strand996-100274
β-strand100317
β-strand100917
β-strand1015-101954
α-helix1020-10212
β-strand102218
α-helix1030-10334
β-strand1041-104448
β-strand1048-105254
α-helix1053-10553
β-strand1059-106025
β-strand1061-106448
α-helix1072-10787
β-strand1082-109098
β-strand1095-109738
α-helix1098-11003
α-helix1137-11382
β-strand1139-114462
α-helix1150-11589
β-strand1161-116772
α-helix1171-118010
β-strand1185-118732
α-helix1191-11999
β-strand120419
β-strand121019
β-strand1219-122242
α-helix1234-12352
α-helix1237-12437
α-helix1247-125812
β-strand1262-126872
α-helix1269-12724
α-helix1278-129013
β-strand1293-130082
α-helix1301-13044
β-strand1311-131882
β-strand1320110
β-strand1322110
α-helix1323-13308
β-strand1332111
α-helix1336-13383
β-strand1343-1344212
β-strand1349-1350212
β-strand1362111
α-helix1363-13653
α-helix1368-13714
α-helix1375-13762
β-strand1385-1386213
α-helix1395-14017
β-strand1409-1410213
α-helix1419-14257
α-helix1436-14383
β-strand1445114
β-strand1451114
β-strand1453115
β-strand1459116
β-strand1466117
β-strand1472117
β-strand1474116
α-helix1477-14793
α-helix1483-14864
β-strand1494115
α-helix1499-15024
α-helix1505-15106
β-strand1515-1516218
α-helix1517-15182
β-strand1538-1540318
β-strand1547118
α-helix1548-15492
α-helix1550-15578
α-helix1569-157810
α-helix1579-15813
α-helix1582-160928

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
DNA (cytosine-5)-methyltransferase 1Aprotein919Homo sapiensP26358 (AlphaFold model)
DNA (5'-D(*AP*CP*TP*TP*AP*(5CM)P*GP*GP*AP*AP*GP*G)-3')BDNA12Homo sapiens
DNA (5'-d(*cp*cp*tp*tp*cp*cp*gp*tp*ap*ap*gp*t)-3')EDNA12Homo sapiens
Sequence of entity 1 (A), FASTA
>9V36_1 DNA (cytosine-5)-methyltransferase 1 (chains A)
EADDDEEVDDNIPEMPSPKKMHQGKKKKQNKNRISWVGEAVKTDGKKSYYKKVCIDAETL
EVGDCVSVIPDDSSKPLYLARVTALWEDSSNGQMFHAHWFCAGTDTVLGATSDPLELFLV
DECEDMQLSYIHSKVKVIYKAPSENWAMEGGMDPESLLEGDDGKTYFYQLWYDQDYARFE
SPPKTQPTEDNKFKFCVSCARLAEMRQKEIPRVLEQLEDLDSRVLYYSATKNGILYRVGD
GVYLPPEAFTFNIKLSSPVKRPRKEPVDEDLYPEHYRKYSDYIKGSNLDAPEPYRIGRIK
EIFCPKKSNGRPNETDIKIRVNKFYRPENTHKSTPASYHADINLLYWSDEEAVVDFKAVQ
GRCTVEYGEDLPECVQVYSMGGPNRFYFLEAYNAKSKSFEDPPNHARSPGNKGKGKGKGK
GKPKSQACEPSEPEIEIKLPKLRTLDVFSGCGGLSEGFHQAGISDTLWAIEMWDPAAQAF
RLNNPGSTVFTEDCNILLKLVMAGETTNSRGQRLPQKGDVEMLCGGPPCQGFSGMNRFNS
RTYSKFKNSLVVSFLSYCDYYRPRFFLLENVRNFVSFKRSMVLKLTLRCLVRMGYQCTFG
VLQAGQYGVAQTRRRAIILAAAPGEKLPLFPEPLHVFAPRACQLSVVVDDKKFVSNITRL
SSGPFRTITVRDTMSDLPEVRNGASALEISYNGEPQSWFQRQLRGAQYQPILRDHICKDM
SALVAARMRHIPLAPGSDWRDLPNIEVRLSDGTMARKLRYTHHDRKNGRSSSGALRGVCS
CVEAGKACDPAARQFNTLIPWCLPHTGNRHNHWAGLYGRLEWDGFFSTTVTNPEPMGKQG
RVLHPEQHRVVSVRECARSQGFPDTYRLFGNILDKHRQVGNAVPPPLAKAIGLEIKLCML
AKARESASAKIKEEEAAKD
Sequence of entity 2 (B), FASTA
>9V36_2 DNA (5'-D(*AP*CP*TP*TP*AP*(5CM)P*GP*GP*AP*AP*GP*G)-3') (chains B)
ACTTACGGAAGG
Sequence of entity 3 (E), FASTA
>9V36_3 DNA (5'-D(*CP*CP*TP*TP*CP*CP*GP*TP*AP*AP*GP*T)-3') (chains E)
CCTTCCGTAAGT

Ligands and cofactors

IDNameFormulaCopies
A1EQT(2~{R})-2-[3,5-dicyano-1-[2-[2-(dimethylamino)ethyl-methyl-amino]-2-oxidanylide…C26 H29 N7 O2 S1
SAHS-adenosyl-L-homocysteineC14 H20 N6 O5 S1
ZNZinc ionZn2

Primary citation

Structure-guided design of 7-azaindole DNMT1 inhibitors active against hypomethylating agent-resistant acute myeloid leukemia. Tang, S., Zong, L., Ma, S. et al. Proc Natl Acad Sci U S A (2026) 123:e2532472123-e2532472123. DOI 10.1073/pnas.2532472123 · PubMed

Other PDB entries of the same protein (UniProt P26358 (AlphaFold model), which also has an AlphaFold model), best resolution first:

Browse structure collections

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