ISDA

Deposition Date 2010-08-01

Release Date 2010-11-10

Last Version Date 2023-12-20

Entry Detail

PDB ID:

2XNB

Keywords:

TRANSFERASE

Title:

Discovery and Characterisation of 2-Anilino-4-(thiazol-5-yl) pyrimidine Transcriptional CDK Inhibitors as Anticancer Agents

Biological Source:

Source Organism:

HOMO SAPIENS (Taxon ID: 9606)

Host Organism:

SPODOPTERA FRUGIPERDA

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.85 Å

R-Value Free:

0.29

R-Value Work:

0.21

R-Value Observed:

0.21

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
Chain IDs:A
Chain Length:298
Number of Molecules:1
Biological Source:HOMO SAPIENS

UniProt ID:P24941 Pfam ID:PF00069 EC:2.7.11.22

Ligand Molecules

Y8L

Primary Citation

Discovery and Characterisation of 2-Anilino-4-(Thiazol-5-Yl)Pyrimidine Transcriptional Cdk Inhibitors as Anticancer Agents

Wang, S, Griffiths, G, Midgley, C.A, Barnett, A.L, Cooper, M, Grabarek, J, Ingram, L, Jackson, W, Kontopidis, G, Mcclue, S.J, Mcinnes, C, Mclachlan, J, Meades, C, Mezna, M, Stuart, I, Thomas, M.P, Zheleva, D.I, Lane, D.P, Jackson, R.C, Glover, D.M, Blake, D.G, Fischer, P.M.Show

Chem.Biol. 17 1111 ? (2010)

PMID: 21035734 DOI: 10.1016/J.CHEMBIOL.2010.07.016

Abstact

The main difficulty in the development of ATP antagonist kinase inhibitors is target specificity, since the ATP-binding motif is present in many proteins. We introduce a strategy that has allowed us to identify compounds from a kinase inhibitor library that block the cyclin-dependent kinases responsible for regulating transcription, i.e., CDK7 and especially CDK9. The screening cascade employs cellular phenotypic assays based on mitotic index and nuclear p53 protein accumulation. This permitted us to classify compounds into transcriptional, cell cycle, and mitotic inhibitor groups. We describe the characterization of the transcriptional inhibitor class in terms of kinase inhibition profile, cellular mode of action, and selectivity for transformed cells. A structural selectivity rationale was used to optimize potency and biopharmaceutical properties and led to the development of a transcriptional inhibitor, 3,4-dimethyl-5-[2-(4-piperazin-1-yl-phenylamino)-pyrimidin-4-yl]-3H-thiazol-2-one, with anticancer activity in animal models.

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Protein

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Disease

Primary Citation of related structures