1RW8

Crystal Structure of TGF-beta receptor I kinase with ATP site inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.291 
  • R-Value Work: 0.260 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Synthesis and activity of new aryl- and heteroaryl-substituted 5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole inhibitors of the transforming growth factor-beta type I receptor kinase domain.

Sawyer, J.S.Beight, D.W.Britt, K.S.Anderson, B.D.Campbell, R.M.Goodson Jr., T.Herron, D.K.Li, H.Y.McMillen, W.T.Mort, N.Parsons, S.Smith, E.C.Wagner, J.R.Yan, L.Zhang, F.Yingling, J.M.

(2004) Bioorg.Med.Chem.Lett. 14: 3581-3584

  • DOI: 10.1016/j.bmcl.2004.04.007
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • We have expanded our previously reported series of pyrazole-based inhibitors of the TGF-beta type I receptor kinase domain (TbetaR-I) to now include new 5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole analogues. Limited examination of the SAR of this new serie ...

    We have expanded our previously reported series of pyrazole-based inhibitors of the TGF-beta type I receptor kinase domain (TbetaR-I) to now include new 5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole analogues. Limited examination of the SAR of this new series in both enzyme and cell based in vitro assays has revealed selectivity differences with respect to p38 MAP kinase (p38 MAPK) depending on the nature of the 'warhead' group on the dihydropyrrolopyrazole ring. As with our original pyrazole series, phenyl substituents tended to show greater selectivity against p38 MAPK than those comprised of the quinoline-4-yl moiety. We have also achieved co-crystallization and X-ray analysis of compounds 3 and 15, two potent examples of this new series, with the TbetaR-I receptor kinase domain.


    Organizational Affiliation

    Discovery Chemistry Research and Technology, The Lilly Research Laboratories, Lilly Corporate Center, Indianapolis, IN 46285, USA. jss.dcrt@lilly.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TGF-beta receptor type I
A
301Homo sapiensMutation(s): 0 
Gene Names: TGFBR1 (ALK5, SKR4)
EC: 2.7.11.30
Find proteins for P36897 (Homo sapiens)
Go to Gene View: TGFBR1
Go to UniProtKB:  P36897
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
580
Query on 580

Download SDF File 
Download CCD File 
A
3-(4-FLUOROPHENYL)-2-(6-METHYLPYRIDIN-2-YL)-5,6-DIHYDRO-4H-PYRROLO[1,2-B]PYRAZOLE
C18 H16 F N3
NBDZLUOYAAVYHF-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
580IC50: 1320 nM (100) BINDINGDB
580IC50: 175 nM BINDINGMOAD
580IC50: 175 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.291 
  • R-Value Work: 0.260 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 41.961α = 90.00
b = 84.961β = 90.00
c = 84.085γ = 90.00
Software Package:
Software NamePurpose
CNSrefinement
AMoREphasing
HKL-2000data reduction
SCALEPACKdata scaling
HKL-2000data collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-02-01
    Type: Initial release
  • Version 1.1: 2008-04-29
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance