3QKJ: PDB entry 3QKJ

The PWWP domain of human DNA (CYTOSINE-5-)-METHYLTRANSFERASE 3 BETA in complex with a bis-tris molecule. Determined by X-ray diffraction at 2.04 Å resolution. Released 9 Mar 2011.

Method
X-ray diffraction
Resolution
2.04 Å
Organism
Homo sapiens
Chains
4
Atoms
4,474
Mol. weight
68.44 kDa
Ligands
BTB
Released
9 Mar 2011

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

Secondary structure: helices and β-sheets

3QKJ contains 30 α-helices and 20 β-strands across 4 chains. 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: 7 helices, 5 β-strands

ElementResiduesLengthSheet
β-strand228-23141
β-strand239-24461
α-helix246-2483
α-helix253-2553
β-strand258-26361
β-strand269-27351
α-helix274-2763
β-strand277-27931
α-helix289-2946
α-helix296-31318
α-helix329-3379
α-helix344-3485
Chain B: 8 helices, 5 β-strands
ElementResiduesLengthSheet
β-strand228-23142
β-strand239-24462
α-helix246-2483
α-helix253-2553
β-strand258-26362
β-strand269-27352
α-helix274-2763
β-strand277-27932
α-helix283-2864
α-helix289-2946
α-helix296-31318
α-helix326-33712
α-helix344-3485
Chain C: 7 helices, 5 β-strands
ElementResiduesLengthSheet
β-strand228-23143
β-strand239-24463
α-helix246-2483
α-helix253-2553
β-strand258-26363
β-strand269-27353
β-strand277-27933
α-helix283-2864
α-helix289-2946
α-helix296-31318
α-helix325-33713
α-helix344-3485
Chain D: 8 helices, 5 β-strands
ElementResiduesLengthSheet
β-strand228-23144
β-strand239-24464
α-helix246-2483
α-helix253-2553
β-strand258-26364
β-strand269-27354
α-helix274-2763
β-strand277-27934
α-helix283-2864
α-helix289-2946
α-helix296-31318
α-helix325-33713
α-helix344-3485

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
DNA cytosine-5 methyltransferase 3 beta isoform 6 variantA, B, C, Dprotein151Homo sapiensQ9UBC3 (AlphaFold model)
Sequence of entity 1 (A, B, C, D), FASTA
>3QKJ_1 DNA cytosine-5 methyltransferase 3 beta isoform 6 variant (chains A, B, C, D)
GEADSGDGDSSEYQDGKEFGIGDLVWGKIKGFSWWPAMVVSWKATSKRQAMSGMRWVQWF
GDGKFSEVSADKLVALGLFSQHFNLATFNKLVSYRKAMYHALEKARVRAGKTFPSSPGDS
LEDQLKPMLEWAHGGFKPTGIEGLKPNNTQP

Ligands and cofactors

IDNameFormulaCopies
BTB2-[bis-(2-hydroxy-ethyl)-amino]-2-hydroxymethyl-propane-1,3-diolC8 H19 N O54

Water and common crystallization additives (SO4) are not listed.

Primary citation

Structural and Histone Binding Ability Characterizations of Human PWWP Domains. Wu, H., Zeng, H., Lam, R. et al. PLoS One (2011) 6:e18919-e18919. DOI 10.1371/journal.pone.0018919 · PubMed

Other PDB entries of the same protein (UniProt Q9UBC3 (AlphaFold model), which also has an AlphaFold model), best resolution first:

Browse structure collections

About this viewer

MolViewer shows 3QKJ directly in your browser with nothing to install. Switch between cartoon, ball-and-stick, spacefill and surface views, color by chain, secondary structure or B-factor, measure distances, angles and dihedrals, and share or embed the view.