3ZTX: Aurora Kinase Selective Inhibitors Identified Using A Taxol- Induced Checkpoint Sensitivity Screen

The members of the Aurora kinase family play critical roles in the regulation of the cell cycle and mitotic spindle assembly and have been intensively investigated as potential targets for a new class of anticancer drugs. We describe a new highly potent and selective class of Aurora kinase inhibitors discovered using a phenotypic cellular screen. Optimized inhibitors display many of the hallmarks of Aurora inhibition including endoreduplication, polyploidy, and loss of cell viability in cancer cells. Structure-activity relationships with respect to kinome-wide selectivity and guided by an Aurora B co-crystal structure resulted in the identification of key selectivity determinants and discovery of a subseries with selectivity toward Aurora A. A direct comparison of biochemical and cellular profiles with respect to published Aurora inhibitors including VX-680, AZD1152, MLN8054, and a pyrimidine-based compound from Genentech demonstrates that compounds 1 and 3 will become valuable additional pharmacological probes of Aurora-dependent functions.
PDB ID: 3ZTXDownload
MMDB ID: 96961
PDB Deposition Date: 2011/7/12
Updated in MMDB: 2012/02
Experimental Method:
x-ray diffraction
Resolution: 1.95  Å
Source Organism:
Similar Structures:
Biological Unit for 3ZTX: dimeric; determined by author and by software (PISA)
Molecular Components in 3ZTX
Label Count Molecule
Proteins (2 molecules)
Serine/threonine-protein Kinase 12-a(Gene symbol: aurkb.L)
Molecule annotation
Inner Centromere Protein a(Gene symbol: incenp.L)
Molecule annotation
Chemical (1 molecule)
* Click molecule labels to explore molecular sequence information.

Citing MMDB