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Crystal structure of mycobacterium tuberculosis dethiobiotin synthetase in complex with 2'-deoxycytidine

Analyse Crystal structure of mycobacterium tuberculosis dethiobiotin synthetase in… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
6NKA
Type
protein
Length
908 residues
Chains
4
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
ATP-dependent dethiobiotin synthetase biod
EC
6.3.3.3
UniProt
P9WPQ5
Ligands
DCZ, SO4
Pockets
8 · best druggability 0.75

Structure

x-ray diffraction · 4 distinct chains · 41% helix, 24% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
AATP-dependent dethiobiotin synthetase biod (EC 6.3.3.3)protein22742% helix, 24% strandP9WPQ5
BATP-dependent dethiobiotin synthetase biod (EC 6.3.3.3)protein22642% helix, 25% strandP9WPQ5
CATP-dependent dethiobiotin synthetase biod (EC 6.3.3.3)protein22841% helix, 24% strandP9WPQ5
DATP-dependent dethiobiotin synthetase biod (EC 6.3.3.3)protein22741% helix, 22% strandP9WPQ5

Ligands and binding sites

  • DCZ · 2'-deoxycytidine · ligand · 4 copies · chains A, B, C, D
  • SO4 · Sulfate ion · ion · 4 copies · chains A, B, C, D

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

Pockets

8 pockets found on a 1 Å grid, 5 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
111000.750.7889empty
22480.620.8145SO4
32480.610.8144SO4
42140.600.8143SO4
51990.580.8137SO4

Interfaces

4 interfaces between chains.

  • A–B · 1214 Ų buried · 13 hydrogen bonds · protein-protein
  • C–D · 1182 Ų buried · 14 hydrogen bonds · protein-protein
  • A–C · 311 Ų buried · 1 hydrogen bond · protein-protein
  • B–C · 131 Ų buried · 4 hydrogen bonds · protein-protein

Compared structures

  • 6NKA · Crystal structure of Mycobacterium tuberculosis dethiobiotin synthetase in complex with… · the same entry in another collection · chain D against D, TM-score 1.00
  • P9WPQ5 · AlphaFold monomer V2.0 prediction for dethiobiotin synthetase biod (P9WPQ5) · a predicted model of the same protein · chain A against A, TM-score 0.99

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