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Structure of the catalytic domain of tankyrase 1 in complex with talazoparib

Analyse Structure of the catalytic domain of tankyrase 1 in complex with talazoparib in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
7KKN
Type
protein
Length
834 residues
Chains
4
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Poly [ADP-ribose] polymerase
EC
2.4.2.-
UniProt
Q59FX0
Ligands
2YQ, ZN
Pockets
11 · best druggability 0.78

Structure

x-ray diffraction · 3 distinct chains · 24% helix, 28% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
APoly [ADP-ribose] polymerase (EC 2.4.2.-)protein20724% helix, 28% strandQ59FX0
B, DPoly [ADP-ribose] polymerase (EC 2.4.2.-)protein21023% helix, 28% strandQ59FX0
CPoly [ADP-ribose] polymerase (EC 2.4.2.-)protein20724% helix, 28% strandQ59FX0

Ligands and binding sites

  • 2YQ · (8S,9R)-5-fluoro-8-(4-fluorophenyl)-9-(1-methyl-1H-1,2, 4-triazol-5-yl)-2,7,8,9-tetrahydro-3H-pyrido[4,3,2-de]phthalazin-3-one · ligand · 4 copies · chains A, B, C, D
  • ZN · Zinc ion · metal · 4 copies · chains A, B, C, D
  • MES · 2-(N-morpholino)-ethanesulfonic acid · additive · 2 copies · chains A, B

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

Pockets

11 pockets found on a 1 Å grid, 5 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
16250.780.84612YQ, MES
25150.730.82582YQ
34460.700.80452YQ
43240.630.79322YQ
51410.620.8626empty

Interfaces

6 interfaces between chains.

  • A–C · 965 Ų buried · 27 hydrogen bonds · protein-protein
  • A–B · 596 Ų buried · 8 hydrogen bonds · protein-protein
  • C–D · 292 Ų buried · 5 hydrogen bonds · protein-protein
  • B–C · 50 Ų buried · 0 hydrogen bonds · protein-protein
  • A–D · 45 Ų buried · 0 hydrogen bonds · protein-protein

Compared structures

  • 7KKN · Structure of the catalytic domain of tankyrase 1 in complex with talazoparib · the same entry in another collection · chain A against A, TM-score 1.00

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