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MolNFT v1 · #153687 · protein + DNA

Cryo-EM structure of DOT1L bound to unmodified nucleosome

6JM9 · DNA strand I: “Cryo-EM structure of DOT1L bound to unmodified nucleosome”. Electron microscopy, 1 ligand (SAM), 20 pockets (best druggability 0.82). MolNFT v1 #153687 on GenesisL1: 3D structure, binding sites and pockets in GL1X.

PDB
6JM9
Type
protein + DNA
Length
1,340 residues
Chains
11
Method
electron microscopy
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
DNA strand I; DNA strand J; Histone H3.2; Histone H4; Histone H2A; Histone H2B 1.1…
EC
2.1.1.43
UniProt
P84233, P62799, Q6AZJ8, P02281, Q8TEK3
Ligands
SAM
Pockets
20 · best druggability 0.82

Structure

electron microscopy · 9 distinct chains · 54% helix, 9% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
IDNA strand Idna123——
JDNA strand Jdna123——
A, EHistone H3.2protein9865% helix, 4% strandP84233
BHistone H4protein8261% helix, 9% strandP62799
CHistone H2Aprotein10756% helix, 7% strandQ6AZJ8
D, HHistone H2B 1.1protein9474% helix, 4% strandP02281
FHistone H4protein8757% helix, 8% strandP62799
GHistone H2Aprotein10657% helix, 7% strandQ6AZJ8
XHistone-lysine N-methyltransferase, H3 lysine-79 specific (EC 2.1.1.43)protein32841% helix, 14% strandQ8TEK3

Ligands and binding sites

  • SAM · S-adenosylmethionine · ligand · chains X

Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.

Pockets

20 pockets found on a 1 Å grid, 18 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
110750.820.8386empty
24700.770.8658empty
33910.750.8554empty
45810.730.8146empty
55890.730.8048empty

Interfaces

42 interfaces between chains.

  • I–J · 5411 Ų buried · 422 hydrogen bonds · nucleic-nucleic
  • C–D · 2640 Ų buried · 25 hydrogen bonds · protein-protein
  • G–H · 2597 Ų buried · 24 hydrogen bonds · protein-protein
  • E–F · 2572 Ų buried · 25 hydrogen bonds · protein-protein
  • A–B · 2572 Ų buried · 27 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 6 covalent (covalent ligand).

Compared structures

  • 6JM9 · cryo-EM structure of DOT1L bound to unmodified nucleosome · the same entry in another collection · chain X against X, TM-score 1.00
  • P84233 · AlphaFold monomer V2.0 prediction for histone H3.2 (P84233) · a predicted model of the same protein · chain A against A, TM-score 0.99

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