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Human DNA polymerase beta crosslinked ternary complex 1

Analyse Human DNA polymerase beta crosslinked ternary complex 1 in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
7RBG
Type
protein + DNA
Length
354 residues
Chains
4
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
DNA (5'-D(*CP*CP*GP*AP*CP*GP*GP*CP*GP*CP*AP*TP*CP*AP*GP*C)- 3'); DNA…
EC
2.7.7.7, 4.2.99.-
UniProt
P06746
Ligands
DCP, QPJ, CA, NA, CL
Pockets
2 · best druggability 0.75

Structure

x-ray diffraction · 4 distinct chains · 50% helix, 13% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
TDNA (5'-D(*CP*CP*GP*AP*CP*GP*GP*CP*GP*CP*AP*TP*CP*AP*GP*C)- 3')dna16——
PDNA (5'-D(*GP*CP*TP*GP*AP*TP*GP*CP*GP*C)-3')dna10——
DDNA (5'-D(*GP*TP*CP*GP*G)-3')dna5——
ADNA polymerase beta (EC 2.7.7.7, 4.2.99.-)protein32350% helix, 13% strandP06746

Ligands and binding sites

  • DCP · 2'-deoxycytidine-5'-triphosphate · ligand · chains T, P, A
  • QPJ · 2-deoxy-3,5-di-O-phosphono-D-erythro-pentitol · ligand · chains D, A
  • CA · Calcium ion · metal · 3 copies · chains A, D, P
  • NA · Sodium ion · metal · 2 copies · chains P, A, D
  • CL · Chloride ion · ion · 2 copies · chains A, T

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

Pockets

2 pockets found on a 1 Å grid, 2 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
19560.750.7975DCP, CA, NA, CL
21820.620.8426empty

Interfaces

5 interfaces between chains.

  • T–A · 749 Ų buried · 15 hydrogen bonds · protein-nucleic
  • T–P · 466 Ų buried · 38 hydrogen bonds · nucleic-nucleic
  • P–A · 384 Ų buried · 10 hydrogen bonds · protein-nucleic
  • D–A · 335 Ų buried · 6 hydrogen bonds · protein-nucleic
  • T–D · 229 Ų buried · 21 hydrogen bonds · nucleic-nucleic

Modifications

Observed in the structure: 2 covalent (covalent ligand).

Compared structures

  • 7RBG · Human DNA polymerase beta crosslinked ternary complex 1 · the same entry in another collection · chain T against T, 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 0.91

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