ISDA

Entry Detail

PDB ID:

2YAC

Keywords:

TRANSFERASE

Title:

Crystal structure of Polo-like kinase 1 in complex with NMS-P937

Biological Source:

Source Organism:

HOMO SAPIENS

Host Organism:

SPODOPTERA FRUGIPERDA

PDB Version:

Deposition Date:

2011-02-18

Release Date:

2011-04-06

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.20 Å

R-Value Free:

0.25

R-Value Work:

0.21

R-Value Observed:

0.21

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:311
Number of Molecules:1
Biological Source:HOMO SAPIENS

UniProt ID:P53350 Pfam ID:PF00069 EC:2.7.11.21

Ligand Molecules

937

TLA

Primary Citation

Nms-P937, a 4,5-Dihydro-1H-Pyrazolo[4,3-H]Quinazoline Derivative as Potent and Selective Polo-Like Kinase 1 Inhibitor.

Beria, I, Bossi, R.T, Brasca, M.G, Caruso, M, Ceccarelli, W, Fachin, G, Fasolini, M, Forte, B, Fiorentini, F, Pesenti, E, Pezzetta, D, Posteri, H, Scolaro, A, Depaolini, S.R, Valsasina, B.Show

Bioorg.Med.Chem.Lett. 21 2969 ? (2011)

PMID: 21470862 DOI: 10.1016/J.BMCL.2011.03.054

Abstact

As part of our drug discovery effort, we identified and developed 4,5-dihydro-1H-pyrazolo[4,3-h]quinazoline derivatives as PLK1 inhibitors. We now report the optimization of this class that led to the identification of NMS-P937, a potent, selective and orally available PLK1 inhibitor. Also, in order to understand the source of PLK1 selectivity, we determined the crystal structure of PLK1 with NMS-P937. The compound was active in vivo in HCT116 xenograft model after oral administration and is presently in Phase I clinical trials evaluation.

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Primary Citation of related structures