4JBP

Novel Aurora kinase inhibitors reveal mechanisms of HURP in nucleation of centrosomal and kinetochore microtubules


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.45 Å
  • R-Value Free: 0.291 
  • R-Value Work: 0.223 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Aurora kinase inhibitors reveal mechanisms of HURP in nucleation of centrosomal and kinetochore microtubules.

Wu, J.M.Chen, C.T.Coumar, M.S.Lin, W.H.Chen, Z.J.Hsu, J.T.Peng, Y.H.Shiao, H.Y.Lin, W.H.Chu, C.Y.Wu, J.S.Lin, C.T.Chen, C.P.Hsueh, C.C.Chang, K.Y.Kao, L.P.Huang, C.Y.Chao, Y.S.Wu, S.Y.Hsieh, H.P.Chi, Y.H.

(2013) Proc.Natl.Acad.Sci.USA 110: E1779-E1787

  • DOI: 10.1073/pnas.1220523110
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The overexpression of Aurora kinases in multiple tumors makes these kinases appealing targets for the development of anticancer therapies. This study identified two small molecules with a furanopyrimidine core, IBPR001 and IBPR002, that target Aurora ...

    The overexpression of Aurora kinases in multiple tumors makes these kinases appealing targets for the development of anticancer therapies. This study identified two small molecules with a furanopyrimidine core, IBPR001 and IBPR002, that target Aurora kinases and induce a DFG conformation change at the ATP site of Aurora A. Our results demonstrate the high potency of the IBPR compounds in reducing tumorigenesis in a colorectal cancer xenograft model in athymic nude mice. Human hepatoma up-regulated protein (HURP) is a substrate of Aurora kinase A, which plays a crucial role in the stabilization of kinetochore fibers. This study used the IBPR compounds as well as MLN8237, a proven Aurora A inhibitor, as chemical probes to investigate the molecular role of HURP in mitotic spindle formation. These compounds effectively eliminated HURP phosphorylation, thereby revealing the coexistence and continuous cycling of HURP between unphosphorylated and phosphorylated forms that are associated, respectively, with microtubules emanating from centrosomes and kinetochores. Furthermore, these compounds demonstrate a spatial hierarchical preference for HURP in the attachment of microtubules extending from the mother to the daughter centrosome. The finding of inequality in the centrosomal microtubules revealed by these small molecules provides a versatile tool for the discovery of new cell-division molecules for the development of antitumor drugs.


    Organizational Affiliation

    Institutes of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Zhunan 35053, Taiwan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Aurora Kinase A
A
279Homo sapiensMutation(s): 1 
Gene Names: AURKA (AIK, AIRK1, ARK1, AURA, AYK1, BTAK, IAK1, STK15, STK6)
EC: 2.7.11.1
Find proteins for O14965 (Homo sapiens)
Go to Gene View: AURKA
Go to UniProtKB:  O14965
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
YPH
Query on YPH

Download SDF File 
Download CCD File 
A
1-(4-{2-[(6-{4-[2-(4-hydroxypiperidin-1-yl)ethoxy]phenyl}furo[2,3-d]pyrimidin-4-yl)amino]ethyl}phenyl)-3-phenylurea
C34 H36 N6 O4
WEVRAOPLGYJTLY-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
YPHIC50: 41 nM (99) BINDINGDB
YPHIC50: 41 nM BINDINGMOAD
YPHIC50: 41 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.45 Å
  • R-Value Free: 0.291 
  • R-Value Work: 0.223 
  • Space Group: P 61 2 2
Unit Cell:
Length (Å)Angle (°)
a = 80.810α = 90.00
b = 80.810β = 90.00
c = 174.308γ = 120.00
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
HKL-2000data scaling
HKL-2000data collection
HKL-2000data reduction
SCALEPACKdata scaling
DENZOdata reduction
MOLREPphasing
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-06-05
    Type: Initial release