3THB image
Entry Detail
PDB ID:
3THB
Title:
Structure of PLK1 kinase domain in complex with a benzolactam-derived inhibitor
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2011-08-18
Release Date:
2011-11-23
Method Details:
Experimental Method:
Resolution:
2.50 Å
R-Value Free:
0.28
R-Value Work:
0.24
R-Value Observed:
0.25
Space Group:
P 32 2 1
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Serine/threonine-protein kinase PLK1
Chain IDs:A
Chain Length:333
Number of Molecules:1
Biological Source:Homo sapiens
Primary Citation

Abstact

This article describes the discovery of a series of potent inhibitors of Polo-like kinase 1 (PLK1). Optimization of this benzolactam-derived chemical series produced an orally bioavailable inhibitor of PLK1 (12c, MLN0905). In vivo pharmacokinetic-pharmacodynamic experiments demonstrated prolonged mitotic arrest after oral administration of 12c to tumor bearing nude mice. A subsequent efficacy study in nude mice achieved tumor growth inhibition or regression in a human colon tumor (HT29) xenograft model.

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Primary Citation of related structures