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Crystal structure of cmp-kdo synthetase

Analyse Crystal structure of cmp-kdo synthetase in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
1VH3
Type
protein
Length
695 residues
Chains
3
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
3-deoxy-manno-octulosonate cytidylyltransferase
EC
2.7.7.38
UniProt
P44490
Ligands
CMK
Pockets
8 · best druggability 0.73

Structure

x-ray diffraction · 3 distinct chains · 33% helix, 23% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
A3-deoxy-manno-octulosonate cytidylyltransferase (EC 2.7.7.38)protein21134% helix, 23% strandP44490
B3-deoxy-manno-octulosonate cytidylyltransferase (EC 2.7.7.38)protein24633% helix, 23% strandP44490
C3-deoxy-manno-octulosonate cytidylyltransferase (EC 2.7.7.38)protein23834% helix, 23% strandP44490

Ligands and binding sites

  • CMK · Cytidine 5'-monophosphate 3-deoxy-beta-D-gulo-oct-2-ulo-pyranosonic acid · ligand · 2 copies · chains A, B

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

Pockets

8 pockets found on a 1 Å grid, 6 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
15990.730.8148CMK
23330.700.8344empty
32300.560.7827empty
42940.550.7633CMK
53270.540.7447empty

Interfaces

3 interfaces between chains.

  • A–B · 1455 Ų buried · 22 hydrogen bonds · protein-protein
  • A–C · 371 Ų buried · 6 hydrogen bonds · protein-protein
  • B–C · 82 Ų buried · 0 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 11 modified (engineered).

Compared structures

  • 1VH3 · Crystal structure of CMP-KDO synthetase · the same entry in another collection · chain A against A, TM-score 1.00
  • P44490 · AlphaFold monomer V2.0 prediction for 3-deoxy-manno-octulosonate cytidylyltransferase… · a predicted model of the same protein · chain C against A, TM-score 0.95

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