ISDA

Deposition Date 2012-01-20

Release Date 2012-08-22

Last Version Date 2023-09-13

Entry Detail

PDB ID:

4DEB

Keywords:

TRANSFERASE/TRANSFERASE INHIBITOR

Title:

Aurora A in complex with RK2-17-01

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

ESCHERICHIA COLI

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

3.05 Å

R-Value Free:

0.28

R-Value Work:

0.22

R-Value Observed:

0.22

Space Group:

P 61 2 2

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Aurora kinase A
Gene (Uniprot):AURKA
Mutations:T287D
Chain IDs:A
Chain Length:279
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:O14965 Pfam ID:PF00069 EC:2.7.11.1

Ligand Molecules

EDO

NHJ

Primary Citation

Development of o-Chlorophenyl Substituted Pyrimidines as Exceptionally Potent Aurora Kinase Inhibitors.

Lawrence, H.R, Martin, M.P, Luo, Y, Pireddu, R, Yang, H, Gevariya, H, Ozcan, S, Zhu, J.Y, Kendig, R, Rodriguez, M, Elias, R, Cheng, J.Q, Sebti, S.M, Schonbrunn, E, Lawrence, N.J.Show

J.Med.Chem. 55 7392 7416 (2012)

PMID: 22803810 DOI: 10.1021/jm300334d

Abstact

The o-carboxylic acid substituted bisanilinopyrimidine 1 was identified as a potent hit (Aurora A IC(50) = 6.1 ± 1.0 nM) from in-house screening. Detailed structure-activity relationship (SAR) studies indicated that polar substituents at the para position of the B-ring are critical for potent activity. X-ray crystallography studies revealed that compound 1 is a type I inhibitor that binds the Aurora kinase active site in a DFG-in conformation. Structure-activity guided replacement of the A-ring carboxylic acid with halogens and incorporation of fluorine at the pyrimidine 5-position led to highly potent inhibitors of Aurora A that bind in a DFG-out conformation. B-Ring modifications were undertaken to improve the solubility and cell permeability. Compounds such as 9m with water-solubilizing moieties at the para position of the B-ring inhibited the autophosphorylation of Aurora A in MDA-MB-468 breast cancer cells.

Legend

Protein

Chemical

Disease

Primary Citation of related structures