ISDA

Deposition Date 2006-06-26

Release Date 2006-09-06

Last Version Date 2024-11-13

Entry Detail

PDB ID:

2IW6

Keywords:

CELL CYCLE

Title:

STRUCTURE OF HUMAN THR160-PHOSPHO CDK2-CYCLIN A COMPLEXED WITH A BISANILINOPYRIMIDINE INHIBITOR

Biological Source:

Source Organism:

HOMO SAPIENS (Taxon ID: 9606)

Host Organism:

ESCHERICHIA COLI

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.30 Å

R-Value Free:

0.28

R-Value Work:

0.22

R-Value Observed:

0.23

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:CELL DIVISION PROTEIN KINASE 2
Gene (Uniprot):CDK2
Mutations:YES
Chain IDs:A, C
Chain Length:302
Number of Molecules:2
Biological Source:HOMO SAPIENS

UniProt ID:P24941 Pfam ID:PF00069 EC:2.7.11.22

Protein Blast

Polymer Type:polypeptide(L)
Molecule:CYCLIN-A2
Gene (Uniprot):CCNA2
Chain IDs:B, D
Chain Length:260
Number of Molecules:2
Biological Source:HOMO SAPIENS

UniProt ID:P20248 Pfam ID:PF00134, PF02984

Modified Residue

Compound ID	Chain ID	Parent Comp ID	Details	2D Image
TPO	A	THR	PHOSPHOTHREONINE

Ligand Molecules

QQ2

SGM

Primary Citation

Dissecting the Determinants of Cyclin-Dependent Kinase 2 and Cyclin-Dependent Kinase 4 Inhibitor Selectivity.

Pratt, D.J, Bentley, J, Jewsbury, P, Boyle, F.T, Endicott, J.A, Noble, M.E.M.Show

J.Med.Chem. 49 5470 ? (2006)

PMID: 16942020 DOI: 10.1021/JM060216X

Abstact

Cyclin dependent kinases are a key family of kinases involved in cell cycle regulation and are an attractive target for cancer chemotherapy. The roles of four residues of the cyclin-dependent kinase active site in inhibitor selectivity were investigated by producing cyclin-dependent kinase 2 mutants bearing equivalent cyclin-dependent kinase 4 residues, namely F82H, L83V, H84D, and K89T. Assay of the mutants with a cyclin-dependent kinase 4-selective bisanilinopyrimidine shows that the K89T mutation is primarily responsible for the selectivity of this compound. Use of the cyclin-dependent kinase 2-selective 6-cyclohexylmethoxy-2-(4'-sulfamoylanilino)purine (NU6102) shows that K89T has no role in the selectivity, while the remaining three mutations have a cumulative influence. The results indicate that certain residues that are not frequently considered in structure-aided kinase inhibitor design have an important role to play.

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Primary Citation of related structures