ISDA: 4EZ5

Deposition Date 2012-05-02

Release Date 2013-02-06

Last Version Date 2023-09-13

Entry Detail

PDB ID:

4EZ5

Keywords:

TRANSFERASE/TRANSFERASE INHIBITOR

Title:

CDK6 (monomeric) in complex with inhibitor

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.70 Å

R-Value Free:

0.28

R-Value Work:

0.21

R-Value Observed:

0.21

Space Group:

I 4

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Macromolecular Entities

Structures with similar UniProt ID

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Cyclin-dependent kinase 6
Gene (Uniprot):CDK6
Chain IDs:A
Chain Length:307
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:Q00534 Pfam ID:PF00069 EC:2.7.11.22

Ligand Molecules

0RS

Primary Citation

Fragment-Based Discovery of 7-Azabenzimidazoles as Potent, Highly Selective, and Orally Active CDK4/6 Inhibitors.

Cho, Y.S, Angove, H, Brain, C, Chen, C.H, Cheng, H, Cheng, R, Chopra, R, Chung, K, Congreve, M, Dagostin, C, Davis, D.J, Feltell, R, Giraldes, J, Hiscock, S.D, Kim, S, Kovats, S, Lagu, B, Lewry, K, Loo, A, Lu, Y, Luzzio, M, Maniara, W, McMenamin, R, Mortenson, P.N, Benning, R, O'Reilly, M, Rees, D.C, Shen, J, Smith, T, Wang, Y, Williams, G, Woolford, A.J, Wrona, W, Xu, M, Yang, F, Howard, S.Show

ACS Med Chem Lett 3 445 449 (2012)

PMID: 24900493 DOI: 10.1021/ml200241a

Abstact

Herein, we describe the discovery of potent and highly selective inhibitors of both CDK4 and CDK6 via structure-guided optimization of a fragment-based screening hit. CDK6 X-ray crystallography and pharmacokinetic data steered efforts in identifying compound 6, which showed >1000-fold selectivity for CDK4 over CDKs 1 and 2 in an enzymatic assay. Furthermore, 6 demonstrated in vivo inhibition of pRb-phosphorylation and oral efficacy in a Jeko-1 mouse xenograft model.

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Primary Citation of related structures

Abstact

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