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MolNFT v1 · #55004 · protein

Evidence for a two-metal-ion-mechanism in the kdo- cytidylyltransferase kdsb

2Y6P · 3-deoxy-manno-octulosonate cytidylyltransferase: “Evidence for a two-metal-ion-mechanism in the kdo- cytidylyltransferase kdsb”. X-ray diffraction, 2 ligands (CTP, MG), 6 pockets (best druggability 0.75). MolNFT v1 #55004 on…

PDB
2Y6P
Type
protein
Length
693 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
O66914
Ligands
CTP, MG
Pockets
6 · best druggability 0.75

Structure

x-ray diffraction · 3 distinct chains · 32% helix, 23% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
A3-deoxy-manno-octulosonate cytidylyltransferase (EC 2.7.7.38)protein23133% helix, 23% strandO66914
B3-deoxy-manno-octulosonate cytidylyltransferase (EC 2.7.7.38)protein23331% helix, 23% strandO66914
C3-deoxy-manno-octulosonate cytidylyltransferase (EC 2.7.7.38)protein22931% helix, 24% strandO66914

Ligands and binding sites

  • CTP · Cytidine-5'-triphosphate · ligand · 3 copies · chains A, B, C
  • MG · Magnesium ion · metal · 6 copies · chains A, B, C
  • IPA · Isopropyl alcohol · additive · 2 copies · chains A, C
  • BME · Beta-mercaptoethanol · additive · chains A

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

Pockets

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

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
17350.750.8058CTP, MG, IPA
26900.740.8057CTP, MG
36090.720.8047CTP, MG, IPA
49260.710.7670empty
51370.630.8619empty

Interfaces

3 interfaces between chains.

  • A–B · 1396 Ų buried · 18 hydrogen bonds · protein-protein
  • A–C · 332 Ų buried · 4 hydrogen bonds · protein-protein
  • B–C · 125 Ų buried · 1 hydrogen bond · protein-protein

Compared structures

  • 2Y6P · Evidence for a Two-Metal-Ion-Mechanism in the Kdo- Cytidylyltransferase KdsB · the same entry in another collection · chain A against A, TM-score 1.00
  • O66914 · AlphaFold monomer V2.0 prediction for 3-deoxy-manno-octulosonate cytidylyltransferase… · a predicted model of the same protein · chain C against A, TM-score 0.99

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