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MolNFT v1 · #87296 · protein + DNA + RNA

Klentaq mutant in complex with a RNA/DNA hybrid

4BWM · DNA polymerase I, thermostable: “Klentaq mutant in complex with a RNA/DNA hybrid”. X-ray diffraction, 3 ligands (DCT, MG, CL), 6 pockets (best druggability 0.83). MolNFT v1 #87296 on GenesisL1: 3D structure, binding sites and…

PDB
4BWM
Type
protein + DNA + RNA
Length
562 residues
Chains
3
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
DNA polymerase I, thermostable; 5'-D(*GP*AP*CP*CP*AP*CP*GP*GP*CP*GP*CP*DOCP)-3'…
EC
2.7.7.7
UniProt
P19821
Ligands
DCT, MG, CL
Pockets
6 · best druggability 0.83

Structure

x-ray diffraction · 3 distinct chains · 55% helix, 14% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ADNA polymerase I, thermostable (EC 2.7.7.7)protein53855% helix, 14% strandP19821
B5'-D(*GP*AP*CP*CP*AP*CP*GP*GP*CP*GP*CP*DOCP)-3'dna10——
G5'-R(*AP*AP*AP*GP*GP*GP*CP*GP*CP*CP*GP*UP*GP*GP*UP*C)-3'rna14——

Ligands and binding sites

  • DCT · 2',3'-dideoxycytidine 5'-triphosphate · ligand · chains A, B, G
  • MG · Magnesium ion · metal · 3 copies · chains A, B, G
  • CL · Chloride ion · ion · 2 copies · chains A
  • FMT · Formic acid · additive · 4 copies · chains A, G

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
19500.830.8587DCT, MG, FMT
22550.590.7932empty
32320.520.7624empty
4640.470.8416FMT
51040.410.7715empty

Interfaces

3 interfaces between chains.

  • A–G · 1041 Ų buried · 22 hydrogen bonds · protein-nucleic
  • A–B · 566 Ų buried · 18 hydrogen bonds · protein-nucleic
  • B–G · 511 Ų buried · 52 hydrogen bonds · nucleic-nucleic

Modifications

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

Compared structures

  • 4BWM · KlenTaq mutant in complex with a RNA/DNA hybrid · the same entry in another collection · chain A against A, TM-score 1.00
  • P19821 · AlphaFold monomer V2.0 prediction for DNA polymerase I, thermostable (P19821) · a predicted model of the same protein · chain A against A, TM-score 0.93

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