3A1B: DNMT3A ADD domain

Crystal structure of the DNMT3A ADD domain in complex with histone H3. Determined by X-ray diffraction at 2.29 Å resolution. Released 10 Nov 2009.

Method
X-ray diffraction
Resolution
2.29 Å
Organism
Homo sapiens
Chains
1
Atoms
1,250
Mol. weight
18.7 kDa
Ligands
ZN
Released
10 Nov 2009

Explore 3A1B in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

3A1B contains 9 α-helices and 12 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: 9 helices, 12 β-strands

ElementResiduesLengthSheet
β-strand457-46041
α-helix461-4633
α-helix473-48412
α-helix490-4923
β-strand49412
β-strand504-50522
β-strand50913
β-strand512-51322
α-helix515-52410
β-strand52814
β-strand53414
β-strand545-54841
α-helix5491
β-strand557-55931
α-helix560-5623
α-helix563-5675
α-helix571-5766
β-strand591-59225
β-strand595-59625
β-strand59713
α-helix601-6099

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
DNA (cytosine-5)-methyltransferase 3A, Histone H3.1Aprotein159Homo sapiensP68431 (AlphaFold model), Q9Y6K1 (AlphaFold model)
Sequence of entity 1 (A), FASTA
>3A1B_1 DNA (cytosine-5)-methyltransferase 3A, Histone H3.1 (chains A)
ARTKQTARKSTGGKAPRKQLRERLVYEVRQKCRNIEDICISCGSLNVTLEHPLFVGGMCQ
NCKNCFLECAYQYDDDGYQSYCTICCGGREVLMCGNNNCCRCFCVECVDLLVGPGAAQAA
IKEDPWNCYMCGHKGTYGLLRRREDWPSRLQMFFANNHD

Ligands and cofactors

IDNameFormulaCopies
ZNZinc ionZn3

Water and common crystallization additives (EDO) are not listed.

Primary citation

Structural basis for recognition of H3K4 methylation status by the DNA methyltransferase 3A ATRX-DNMT3-DNMT3L domain. Otani, J., Nankumo, T., Arita, K. et al. EMBO Rep (2009) 10:1235-1241. DOI 10.1038/embor.2009.218 · PubMed

Other PDB entries of the same protein (UniProt P68431 (AlphaFold model), which also has an AlphaFold model), best resolution first:

Browse structure collections

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