5TA6 image
Entry Detail
PDB ID:
5TA6
Title:
Crystal structure of PLK1 in complex with a novel 5,6-dihydroimidazolo[1,5-f]pteridine inhibitor.
Biological Source:
Source Organism:
PDB Version:
Deposition Date:
2016-09-09
Release Date:
2017-02-22
Method Details:
Experimental Method:
Resolution:
2.50 Å
R-Value Free:
0.25
R-Value Work:
0.17
R-Value Observed:
0.18
Space Group:
P 32 2 1
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Serine/threonine-protein kinase PLK1
Chain IDs:A
Chain Length:358
Number of Molecules:1
Biological Source:Homo sapiens
Primary Citation
Structure-based design and SAR development of 5,6-dihydroimidazolo[1,5-f]pteridine derivatives as novel Polo-like kinase-1 inhibitors.
Bioorg. Med. Chem. Lett. 27 1311 1315 (2017)
PMID: 28169164 DOI: 10.1016/j.bmcl.2016.10.009

Abstact

Using structure-based drug design, we identified a novel series of 5,6-dihydroimidazolo[1,5-f]pteridine PLK1 inhibitors. Rational improvements to compounds of this class resulted in single-digit nanomolar enzyme and cellular activity against PLK1, and oral bioavailability. Compound 1 exhibits >7 fold induction of phosphorylated Histone H3 and is efficacious in an in vivo HT-29 tumor xenograft model.

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