3S2A

Crystal structure of PI3K-gamma in complex with a quinoline inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.55 Å
  • R-Value Free: 0.301 
  • R-Value Work: 0.234 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Phospshoinositide 3-Kinase (PI3K)/Mammalian Target of Rapamycin (mTOR) Dual Inhibitors: Discovery and Structure-Activity Relationships of a Series of Quinoline and Quinoxaline Derivatives.

Nishimura, N.Siegmund, A.Liu, L.Yang, K.Bryan, M.C.Andrews, K.L.Bo, Y.Booker, S.K.Caenepeel, S.Freeman, D.Liao, H.McCarter, J.Mullady, E.L.San Miguel, T.Subramanian, R.Tamayo, N.Wang, L.Whittington, D.A.Zalameda, L.Zhang, N.Hughes, P.E.Norman, M.H.

(2011) J.Med.Chem. 54: 4735-4751

  • DOI: 10.1021/jm200386s

  • PubMed Abstract: 
  • The phosphoinositide 3-kinase (PI3K) family catalyzes the ATP-dependent phosphorylation of the 3'-hydroxyl group of phosphatidylinositols and plays an important role in cell growth and survival. There is abundant evidence demonstrating that PI3K sign ...

    The phosphoinositide 3-kinase (PI3K) family catalyzes the ATP-dependent phosphorylation of the 3'-hydroxyl group of phosphatidylinositols and plays an important role in cell growth and survival. There is abundant evidence demonstrating that PI3K signaling is dysregulated in many human cancers, suggesting that therapeutics targeting the PI3K pathway may have utility for the treatment of cancer. Our efforts to identify potent, efficacious, and orally available PI3K/mammalian target of rapamycin (mTOR) dual inhibitors resulted in the discovery of a series of substituted quinolines and quinoxalines derivatives. In this report, we describe the structure-activity relationships, selectivity, and pharmacokinetic data of this series and illustrate the in vivo pharmacodynamic and efficacy data for a representative compound.


    Organizational Affiliation

    Department of Chemistry Research and Discovery, Amgen Inc., Thousand Oaks, California 91320-1799, United States. nobukon@amgen.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit gamma isoform
A
960Homo 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
2NQ
Query on 2NQ

Download SDF File 
Download CCD File 
A
N-{2-chloro-5-[4-(morpholin-4-yl)quinolin-6-yl]pyridin-3-yl}-4-fluorobenzenesulfonamide
C24 H20 Cl F N4 O3 S
RTARVPHTCQRSDW-UHFFFAOYSA-N
 Ligand Interaction
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
2NQIC50: 8.1 nM (100) BINDINGDB
2NQIC50: 8.1 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.55 Å
  • R-Value Free: 0.301 
  • R-Value Work: 0.234 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 144.465α = 90.00
b = 68.169β = 94.80
c = 107.347γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
AMoREphasing
REFMACrefinement
HKL-2000data reduction
PDB_EXTRACTdata extraction
BOSdata collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-06-08
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2011-07-20
    Type: Database references