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Crystal Structure of E.coli Dha kinase DhaK (H56N) complex with Dha

Analyse Crystal Structure of E.coli Dha kinase DhaK (H56N) complex with Dha in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
3PNQ
Type
protein
Length
1,339 residues
Chains
4
Method
x-ray diffraction
Collection
MolNFT v2 / PDB Bank
Contract
0xd58B01f6C18086e5202cdC5D7Ad3E41790360102
Owner
0xF4e1AA6f26B7DA48EeAD9B24a97927303eeA07b8
Resolution
2.2
Source
Escherichia coli
Molecule
PTS-dependent dihydroxyacetone kinase, dihydroxyacetone-binding subunit dhaK
EC
2.7.-.-
UniProt
P76015
Ligands
2HA
Pockets
12 · best druggability 0.83

Structure

x-ray diffraction · resolution 2.2 · 3 distinct chains · 32% helix, 31% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
A, DPTS-dependent dihydroxyacetone kinase, dihydroxyacetone-binding subunit dhaK (EC 2.7.-.-)protein33432% helix, 31% strandP76015
BPTS-dependent dihydroxyacetone kinase, dihydroxyacetone-binding subunit dhaK (EC 2.7.-.-)protein33632% helix, 32% strandP76015
CPTS-dependent dihydroxyacetone kinase, dihydroxyacetone-binding subunit dhaK (EC 2.7.-.-)protein33532% helix, 30% strandP76015

Ligands and binding sites

  • 2HA · Dihydroxyacetone · sugar · chains D

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

Pockets

12 pockets found on a 1 Å grid, 4 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
110700.830.84107empty
210320.810.8281empty
3810.640.9126empty
41760.510.7836empty
51280.470.7825empty

Interfaces

3 interfaces between chains.

  • A–B · 1343 Ų buried · 13 hydrogen bonds · protein-protein
  • C–D · 1334 Ų buried · 13 hydrogen bonds · protein-protein
  • A–C · 551 Ų buried · 4 hydrogen bonds · protein-protein

Compared structures

  • 3PNQ · Crystal structure of E.COLI dha kinase dhak (H56N) complex with dha · the same entry in another collection · chain D against D, TM-score 1.00
  • P76015 · AlphaFold monomer V2.0 prediction for pep-dependent dihydroxyacetone kinase… · a predicted model of the same protein · chain A against A, TM-score 1.00

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