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MolNFT v1 · #124460 · protein + DNA

Human DNA polymerase eta R61A-DNA ternary complex: reaction with 1 mm MG2+ for 200S

5KFW: “Human DNA polymerase eta R61A-DNA ternary complex: reaction with 1 mm MG2+ for 200S”. X-ray diffraction, 5 ligands (DTP, DPO, MG), 6 pockets (best druggability 0.75). MolNFT v1 #124460 on GenesisL1: 3D structure, binding sites and…

PDB
5KFW
Type
protein + DNA
Length
450 residues
Chains
3
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
DNA polymerase eta; DNA (5'-D(*CP*AP*TP*TP*AP*TP*GP*AP*CP*GP*CP*T)-3'); DNA…
EC
2.7.7.7
UniProt
Q9Y253
Ligands
DTP, DPO, MG, CA, K
Pockets
6 · best druggability 0.75

Structure

x-ray diffraction · 3 distinct chains · 43% helix, 22% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ADNA polymerase eta (EC 2.7.7.7)protein43043% helix, 22% strandQ9Y253
TDNA (5'-D(*CP*AP*TP*TP*AP*TP*GP*AP*CP*GP*CP*T)-3')dna11——
PDNA (5'-D(*AP*GP*CP*GP*TP*CP*AP*TP*A)-3')dna9——

Ligands and binding sites

  • DTP · 2'-deoxyadenosine 5'-triphosphate · ligand · chains A, T, P
  • DPO · Diphosphate · ligand · chains A, P
  • MG · Magnesium ion · metal · 3 copies · chains A, P
  • CA · Calcium ion · metal · chains A, P
  • K · Potassium ion · metal · chains A, P
  • GOL · Glycerol · additive · 3 copies · chains A

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

Pockets

6 pockets found on a 1 Å grid, 4 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
15220.750.8341empty
25490.730.8250empty
32310.660.8424empty
43110.540.7534DPO, MG
51030.460.7920empty

Interfaces

3 interfaces between chains.

  • A–T · 1041 Ų buried · 21 hydrogen bonds · protein-nucleic
  • A–P · 721 Ų buried · 20 hydrogen bonds · protein-nucleic
  • T–P · 424 Ų buried · 35 hydrogen bonds · nucleic-nucleic

Modifications

Observed in the structure: 1 covalent (covalent ligand).

Compared structures

  • 5KFW · Human DNA polymerase eta R61A-DNA ternary complex: reaction with 1 mM Mg2+ for 200s · the same entry in another collection · chain A against A, TM-score 1.00

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