3LJ3

PI3-kinase-gamma with a pyrrolopyridine-benzofuran inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.43 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.222 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Discovery and optimization of 2-(4-substituted-pyrrolo[2,3-b]pyridin-3-yl)methylene-4-hydroxybenzofuran-3(2H)-ones as potent and selective ATP-competitive inhibitors of the mammalian target of rapamycin (mTOR).

Tsou, H.R.MacEwan, G.Birnberg, G.Grosu, G.Bursavich, M.G.Bard, J.Brooijmans, N.Toral-Barza, L.Hollander, I.Mansour, T.S.Ayral-Kaloustian, S.Yu, K.

(2010) Bioorg.Med.Chem.Lett. 20: 2321-2325

  • DOI: 10.1016/j.bmcl.2010.01.135

  • PubMed Abstract: 
  • We discovered 2-(4-substituted-pyrrolo[2,3-b]pyridin-3-yl)methylene-4-hydroxybenzofuran-3(2H)-ones as potent and selective ATP-competitive inhibitors of the mammalian target of rapamycin (mTOR). Since phenolic OH groups pose metabolic liability, one ...

    We discovered 2-(4-substituted-pyrrolo[2,3-b]pyridin-3-yl)methylene-4-hydroxybenzofuran-3(2H)-ones as potent and selective ATP-competitive inhibitors of the mammalian target of rapamycin (mTOR). Since phenolic OH groups pose metabolic liability, one of the two hydroxyl groups was selectively removed. The SAR data showed the structural features necessary for subnanomolar inhibitory activity against mTOR kinase as well as selectivity over PI3Kalpha. An X-ray co-crystal structure of one inhibitor with the mTOR-related PI3Kgamma revealed the key hydrogen bonding interactions.


    Organizational Affiliation

    Chemical Sciences, Wyeth Research, 401 N. Middletown Road, Pearl River, NY 10965, United States. tsouh@wyeth.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit gamma isoform
A
966Homo sapiensMutation(s): 0 
Gene Names: PIK3CG
EC: 2.7.1.153
Find proteins for P48736 (Homo sapiens)
Go to Gene View: PIK3CG
Go to UniProtKB:  P48736
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
WYE
Query on WYE

Download SDF File 
Download CCD File 
A
(2Z)-4,6-dihydroxy-2-{[1-methyl-4-(4-methylpiperazin-1-yl)-1H-pyrrolo[2,3-b]pyridin-3-yl]methylidene}-1-benzofuran-3(2H)-one
C22 H22 N4 O4
RLZIWQDVHJTWEF-NVMNQCDNSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
WYEIC50: 43 nM BINDINGMOAD
WYEIC50: 0.94 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.43 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.222 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 145.071α = 90.00
b = 68.509β = 94.64
c = 106.692γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
PHENIXphasing
PHENIXrefinement
PHENIXmodel building
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2010-01-25 
  • Released Date: 2010-04-14 
  • Deposition Author(s): Bard, J., Svenson, K.

Revision History 

  • Version 1.0: 2010-04-14
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2012-02-29
    Type: Derived calculations