ISDA

Entry Detail

PDB ID:

4BYI

Keywords:

TRANSFERASE

Title:

Aurora A kinase bound to a highly selective imidazopyridine inhibitor

Biological Source:

Source Organism:

HOMO SAPIENS

Host Organism:

ESCHERICHIA COLI

PDB Version:

Deposition Date:

2013-07-19

Release Date:

2013-11-20

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.60 Å

R-Value Free:

0.25

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)
Description:AURORA KINASE A
Chain IDs:A
Chain Length:285
Number of Molecules:1
Biological Source:HOMO SAPIENS

UniProt ID:O14965 Pfam ID:PF00069 EC:2.7.11.1

Ligand Molecules

FH3

Primary Citation

Aurora Isoform Selectivity: Design and Synthesis of Imidazo[4,5-B]Pyridine Derivatives as Highly Selective Inhibitors of Aurora-A Kinase in Cells.

Bavetsias, V, Faisal, A, Crumpler, S, Brown, N, Kosmopoulou, M, Joshi, A, Atrash, B, Perez-Fuertes, Y, Schmitt, J.A, Boxall, K.J, Burke, R, Sun, C, Avery, S, Bush, K, Henley, A, Raynaud, F.I, Workman, P, Bayliss, R, Linardopoulos, S, Blagg, J.Show

J.Med.Chem. 56 9122 ? (2013)

PMID: 24195668 DOI: 10.1021/JM401115G

Abstact

Aurora-A differs from Aurora-B/C at three positions in the ATP-binding pocket (L215, T217, and R220). Exploiting these differences, crystal structures of ligand-Aurora protein interactions formed the basis of a design principle for imidazo[4,5-b]pyridine-derived Aurora-A-selective inhibitors. Guided by a computational modeling approach, appropriate C7-imidazo[4,5-b]pyridine derivatization led to the discovery of highly selective inhibitors, such as compound 28c, of Aurora-A over Aurora-B. In HCT116 human colon carcinoma cells, 28c and 40f inhibited the Aurora-A L215R and R220K mutants with IC50 values similar to those seen for the Aurora-A wild type. However, the Aurora-A T217E mutant was significantly less sensitive to inhibition by 28c and 40f compared to the Aurora-A wild type, suggesting that the T217 residue plays a critical role in governing the observed isoform selectivity for Aurora-A inhibition. These compounds are useful small-molecule chemical tools to further explore the function of Aurora-A in cells.

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Primary Citation of related structures