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Human DNA polymerase eta-DNA ternary complex with sp-datp-alpha-S: reaction with 20 mm MG2+ for 600S

Analyse Human DNA polymerase eta-DNA ternary complex with sp-datp-alpha-S: reaction… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
5KFP
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
STP, DPO, MG, CA
Pockets
6 · best druggability 0.76

Structure

x-ray diffraction · 3 distinct chains · 44% helix, 22% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ADNA polymerase eta (EC 2.7.7.7)protein43044% 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*(DS))-3')dna9——

Ligands and binding sites

  • STP · 2'-deoxyadenosine 5'-O-(1-thiotriphosphate) · 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
  • 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, 3 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
15150.760.8440empty
26090.730.8051empty
32120.660.8422empty
41040.470.8020empty
51990.470.7527MG, DPO

Interfaces

3 interfaces between chains.

  • A–T · 1082 Ų buried · 21 hydrogen bonds · protein-nucleic
  • A–P · 779 Ų buried · 18 hydrogen bonds · protein-nucleic
  • T–P · 430 Ų buried · 39 hydrogen bonds · nucleic-nucleic

Modifications

Observed in the structure: 1 covalent, 1 modified (covalent ligand, nucleotide modification).

Compared structures

  • 5KFP · Human DNA polymerase eta-DNA ternary complex with Sp-dATP-alpha-S: reaction with 20 mM… · the same entry in another collection · chain T against T, TM-score 1.00

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