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Structure of CDK2 in complex with cyclin a and a 2-amino-4- heteroaryl-pyrimidine inhibitor

Analyse Structure of CDK2 in complex with cyclin a and a 2-amino-4… in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
4BCP
Type
protein
Length
1,081 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
UniProt
P24941, P20248
Ligands
T3C, SO4
Pockets
11 · best druggability 0.81

Structure

x-ray diffraction · 3 distinct chains · 45% helix, 12% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
ACyclin-dependent kinase 2 (EC 2.7.11.22)protein29935% helix, 17% strandP24941
B, DCyclin-A2protein25767% helix, 0% strandP20248
CCyclin-dependent kinase 2 (EC 2.7.11.22)protein26835% helix, 19% strandP24941

Ligands and binding sites

  • T3C · 2-[[3-(1,4-diazepan-1-yl)phenyl]amino]-4-[4-methyl-2-(methylamino)-1,3-thiazol-5-yl]pyrimidine-5-carbonitrile · ligand · 2 copies · chains A, C
  • SO4 · Sulfate ion · ion · 2 copies · chains B, C, A, D
  • SGM · Monothioglycerol · additive · 3 copies · chains B, D

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

Pockets

11 pockets found on a 1 Å grid, 11 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
11160.810.9923empty
21160.800.9822empty
311140.750.7895empty
42360.670.8426T3C
52510.620.8124T3C

Interfaces

5 interfaces between chains.

  • C–D · 1640 Ų buried · 27 hydrogen bonds · protein-protein
  • A–B · 1561 Ų buried · 28 hydrogen bonds · protein-protein
  • B–C · 491 Ų buried · 4 hydrogen bonds · protein-protein
  • A–D · 467 Ų buried · 3 hydrogen bonds · protein-protein
  • A–C · 58 Ų buried · 0 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 2 modified, 1 covalent (phosphorylation, additive adduct).

Compared structures

  • 4BCP · Structure of CDK2 in complex with cyclin A and a 2-amino-4-heteroaryl- pyrimidine… · 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 1.00
  • 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 0.91

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