ISDA

Entry Detail

PDB ID:

5TA6

Keywords:

Transferase/Transferase Inhibitor

Title:

Crystal structure of PLK1 in complex with a novel 5,6-dihydroimidazolo[1,5-f]pteridine inhibitor.

Biological Source:

Source Organism:

Homo sapiens

Host Organism:

unidentified baculovirus

PDB Version:

Deposition Date:

2016-09-09

Release Date:

2017-02-22

Method Details:

Experimental Method:

X-RAY DIFFRACTION

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

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Serine/threonine-protein kinase PLK1
Chain IDs:A
Chain Length:358
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P53350 Pfam ID:PF00069 EC:2.7.11.21

Ligand Molecules

79D

Primary Citation

Structure-based design and SAR development of 5,6-dihydroimidazolo[1,5-f]pteridine derivatives as novel Polo-like kinase-1 inhibitors.

Kiryanov, A, Natala, S, Jones, B, McBride, C, Feher, V, Lam, B, Liu, Y, Honda, K, Uchiyama, N, Kawamoto, T, Hikichi, Y, Zhang, L, Hosfield, D, Skene, R, Zou, H, Stafford, J, Cao, X, Ichikawa, T.Show

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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Primary Citation of related structures