3V8S

Human RHO-ASSOCIATED PROTEIN KINASE 1 (ROCK 1) IN COMPLEX WITH INDAZOLE DERIVATIVE (COMPOUND 18)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.29 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.188 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Fragment-based and structure-guided discovery and optimization of rho kinase inhibitors.

Li, R.Martin, M.P.Liu, Y.Wang, B.Patel, R.A.Zhu, J.Y.Sun, N.Pireddu, R.Lawrence, N.J.Li, J.Haura, E.B.Sung, S.S.Guida, W.C.Schonbrunn, E.Sebti, S.M.

(2012) J Med Chem 55: 2474-2478

  • DOI: 10.1021/jm201289r
  • Primary Citation of Related Structures:  
    3V8S

  • PubMed Abstract: 
  • Using high concentration biochemical assays and fragment-based screening assisted by structure-guided design, we discovered a novel class of Rho-kinase inhibitors. Compound 18 was equipotent for ROCK1 (IC(50) = 650 nM) and ROCK2 (IC(50) = 670 nM), whereas compound 24 was more selective for ROCK2 (IC(50) = 100 nM) over ROCK1 (IC(50) = 1690 nM) ...

    Using high concentration biochemical assays and fragment-based screening assisted by structure-guided design, we discovered a novel class of Rho-kinase inhibitors. Compound 18 was equipotent for ROCK1 (IC(50) = 650 nM) and ROCK2 (IC(50) = 670 nM), whereas compound 24 was more selective for ROCK2 (IC(50) = 100 nM) over ROCK1 (IC(50) = 1690 nM). The crystal structure of the compound 18-ROCK1 complex revealed that 18 is a type 1 inhibitor that binds the hinge region in the ATP binding site. Compounds 18 and 24 inhibited potently the phosphorylation of the ROCK substrate MLC2 in intact human breast cancer cells.


    Organizational Affiliation

    Department of Drug Discovery, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, Florida 33612, USA. Rongshi.Li@moffitt.org



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Rho-associated protein kinase 1 ABCD410Homo sapiensMutation(s): 0 
Gene Names: ROCK1
EC: 2.7.11.1
Find proteins for Q13464 (Homo sapiens)
Explore Q13464 
Go to UniProtKB:  Q13464
NIH Common Fund Data Resources
PHAROS:  Q13464
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
0HD
Query on 0HD

Download Ideal Coordinates CCD File 
A, B, C, D
1-(1H-indazol-5-yl)-3-(2-phenylethyl)urea
C16 H16 N4 O
XEZOXLSEWZHMQY-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
0HDIC50 :  650   nM  PDBBind
0HDIC50:  650   nM  BindingDB
0HDIC50:  650   nM  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.29 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.188 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 151.72α = 90
b = 152.11β = 90
c = 186.14γ = 90
Software Package:
Software NamePurpose
MOLREPphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-02-08
    Type: Initial release
  • Version 1.1: 2012-03-21
    Changes: Database references