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Ternary complex crystal structure of K289M variant of DNA polymerase beta with beta-gamma chf analog of dgtp

Analyse Ternary complex crystal structure of K289M variant of DNA polymerase beta with… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
6NKS
Type
protein + DNA
Length
357 residues
Chains
4
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
DNA polymerase beta; DNA (5'-D(P*GP*TP*CP*GP*G)-3'); DNA…
EC
2.7.7.7, 4.2.99.-
UniProt
P06746
Ligands
GFH, NA, MG, CL
Pockets
3 · best druggability 0.72

Structure

x-ray diffraction · 4 distinct chains · 51% helix, 13% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ADNA polymerase beta (EC 2.7.7.7, 4.2.99.-)protein32651% helix, 13% strandP06746
DDNA (5'-D(P*GP*TP*CP*GP*G)-3')dna5——
PDNA (5'-D(*GP*CP*TP*GP*AP*TP*GP*CP*GP*(DOC))-3')dna10——
TDNA (5'-D(*CP*CP*GP*AP*CP*CP*GP*CP*GP*CP*AP*TP*CP*AP*GP*C)- 3')dna16——

Ligands and binding sites

  • GFH · 2'-deoxy-5'-O-[(R)-{[(R)-[(R)-fluoro(phosphono) methyl](hydroxy)phosphoryl]oxy}(hydroxy) phosphoryl]guanosine · ligand · chains A, P, T
  • NA · Sodium ion · metal · 3 copies · chains A, P, D
  • MG · Magnesium ion · metal · chains A
  • CL · Chloride ion · ion · 3 copies · chains A

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

Pockets

3 pockets found on a 1 Å grid, 3 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
110060.720.7665GFH, MG, NA
23420.600.7827empty
32250.580.8029empty

Interfaces

5 interfaces between chains.

  • A–T · 685 Ų buried · 12 hydrogen bonds · protein-nucleic
  • P–T · 458 Ų buried · 44 hydrogen bonds · nucleic-nucleic
  • A–D · 414 Ų buried · 9 hydrogen bonds · protein-nucleic
  • A–P · 346 Ų buried · 9 hydrogen bonds · protein-nucleic
  • D–T · 234 Ų buried · 20 hydrogen bonds · nucleic-nucleic

Modifications

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

Compared structures

  • 6NKS · Ternary complex crystal structure of K289M variant of DNA polymerase Beta with beta-gamma… · the same entry in another collection · chain A against A, TM-score 1.00
  • P06746 · AlphaFold monomer V2.0 prediction for DNA polymerase beta (P06746) · a predicted model of the same protein · chain A against A, TM-score 0.95

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