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Structure-based design of C8-substituted O6- cyclohexylmethoxyguanine CDK1 and 2 inhibitors.

Analyse Structure-based design of C8-substituted O6- cyclohexylmethoxyguanine CDK1 and… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
4CFU
Type
protein
Length
1,097 residues
Chains
4
Method
x-ray diffraction
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
Cyclin-dependent kinase 2; Cyclin-A2
EC
2.7.11.22, 2.7.11.23
UniProt
P24941, P20248
Ligands
2WC, MG
Pockets
14 · best druggability 0.80

Structure

x-ray diffraction · 4 distinct chains · 50% helix, 9% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ACyclin-dependent kinase 2 (EC 2.7.11.22, 2.7.11.23)protein30033% helix, 17% strandP24941
BCyclin-A2protein26268% helix, 0% strandP20248
CCyclin-dependent kinase 2 (EC 2.7.11.22, 2.7.11.23)protein27336% helix, 19% strandP24941
DCyclin-A2protein26267% helix, 0% strandP20248

Ligands and binding sites

  • 2WC · 3-[2-azanyl-6-(cyclohexylmethoxy)-7H-purin-8-yl]-2-methyl-benzoic acid · ligand · 2 copies · chains A, C
  • MG · Magnesium ion · metal · 2 copies · chains A, B, D

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

Pockets

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

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
11170.800.9925empty
21140.800.9823empty
39580.780.80106empty
43220.670.81362WC
52340.640.82242WC

Interfaces

5 interfaces between chains.

  • C–D · 1893 Ų buried · 35 hydrogen bonds · protein-protein
  • A–B · 1878 Ų buried · 35 hydrogen bonds · protein-protein
  • A–D · 569 Ų buried · 2 hydrogen bonds · protein-protein
  • B–C · 569 Ų buried · 4 hydrogen bonds · protein-protein
  • A–C · 106 Ų buried · 4 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 2 modified (phosphorylation).

Compared structures

  • 4CFU · Structure-based design of C8-substituted O6-cyclohexylmethoxyguanine CDK1 and 2… · the same entry in another collection · chain D against D, TM-score 1.00
  • P20248 · AlphaFold monomer V2.0 prediction for cyclin-A2 (P20248) · a predicted model of the same protein · chain B against A, TM-score 0.99
  • P24941 · AlphaFold monomer V2.0 prediction for cyclin-dependent kinase 2 (P24941) · a predicted model of the same protein · chain A against A, TM-score 0.90

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