2X7O

Crystal structure of TGFbRI complexed with an indolinone inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.7 Å
  • R-Value Free: 0.273 
  • R-Value Work: 0.267 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Design, Synthesis and Evaluation of Indolinones as Inhibitors of the Transforming Growth Factor Beta Receptor I (Tgfbri)

Roth, G.J.Heckel, A.Brandl, T.Grauert, M.Hoerer, S.Kley, J.T.Schnapp, G.Baum, P.Mennerich, D.Schnapp, A.Park, J.E.

(2010) J.Med.Chem. 53: 7287

  • DOI: 10.1021/jm100812a

  • PubMed Abstract: 
  • Inhibition of transforming growth factor β (TGFβ) type I receptor (Alk5) offers a novel approach for the treatment of fibrotic diseases and cancer. Indolinones substituted in position 6 were identified as a new chemotype inhibiting TGFβRI concomitant ...

    Inhibition of transforming growth factor β (TGFβ) type I receptor (Alk5) offers a novel approach for the treatment of fibrotic diseases and cancer. Indolinones substituted in position 6 were identified as a new chemotype inhibiting TGFβRI concomitant with a low cross-reactivity among the human kinome. A subset of compounds showed additional inhibition of platelet-derived growth factor receptor alpha (PDGFRα), contributing to an interesting pharmacological profile. In contrast, p38 kinase, which is often inhibited by TGFβRI inhibitors, was not targeted by derivatives based on the indolinone chemotype. Guided by an X-ray structure of lead compound 5 (BIBF0775) soaked into the kinase domain of TGFβRI, optimization furnished potent and selective inhibitors of TGFβRI. Potent inhibition translated well into good inhibition of TGFβRI-mediated phosphorylation of Smad2/3, demonstrating efficacy in a cellular setting. Optimized compounds were extensively profiled on a 232-kinase panel and showed low cross-reactivities within the human kinome.


    Organizational Affiliation

    Biberach, Department of Medicinal Chemistry, Boehringer Ingelheim Pharma GmbH & Co KG, Birkendorfer Strasse 65,D-88397 Biberach, Germany. gerald.roth@boehringer-ingelheim.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TGF-BETA RECEPTOR TYPE I
A, B, C, D, E
342Homo 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
ZOP
Query on ZOP

Download SDF File 
Download CCD File 
A, B, C, D, E
(3Z)-N-ETHYL-N-METHYL-2-OXO-3-(PHENYL{[4-(PIPERIDIN-1-YLMETHYL)PHENYL]AMINO}METHYLIDENE)-2,3-DIHYDRO-1H-INDOLE-6-CARBOXAMIDE
C31 H34 N4 O2
MUSRTIADFPCYTQ-ZIADKAODSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
ZOPIC50: 34 nM (100) BINDINGDB
ZOPEC50: 105 nM (100) BINDINGDB
ZOPIC50: 34 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.7 Å
  • R-Value Free: 0.273 
  • R-Value Work: 0.267 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 179.929α = 90.00
b = 246.561β = 90.00
c = 131.617γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
AMoREphasing
SCALAdata scaling
BUSTERrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-10-20
    Type: Initial release
  • Version 1.1: 2011-05-19
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2019-04-03
    Type: Data collection, Other, Source and taxonomy