3L08

Structure of Pi3K gamma with a potent inhibitor: GSK2126458


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.198 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Discovery of GSK2126458, a Highly Potent Inhibitor of PI3K and the Mammalian Target of Rapamycin.

Knight, S.D.Adams, N.D.Burgess, J.L.Chaudhari, A.M.Darcy, M.G.Donatelli, C.A.Luengo, J.I.Newlander, K.A.Parrish, C.A.Ridgers, L.H.Sarpong, M.A.Schmidt, S.J.Van Aller, G.S.Carson, J.D.Diamond, M.A.Elkins, P.A.Gardiner, C.M.Garver, E.Gilbert, S.A.Gontarek, R.R.Jackson, J.R.Kershner, K.L.Luo, L.Raha, K.Sherk, C.S.Sung, C.M.Sutton, D.Tummino, P.J.Wegrzyn, R.J.Auger, K.R.Dhanak, D.

(2010) ACS Med Chem Lett 1: 39-43

  • DOI: 10.1021/ml900028r
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Phosphoinositide 3-kinase α (PI3Kα) is a critical regulator of cell growth and transformation, and its signaling pathway is the most commonly mutated pathway in human cancers. The mammalian target of rapamycin (mTOR), a class IV PI3K protein kinase, ...

    Phosphoinositide 3-kinase α (PI3Kα) is a critical regulator of cell growth and transformation, and its signaling pathway is the most commonly mutated pathway in human cancers. The mammalian target of rapamycin (mTOR), a class IV PI3K protein kinase, is also a central regulator of cell growth, and mTOR inhibitors are believed to augment the antiproliferative efficacy of PI3K/AKT pathway inhibition. 2,4-Difluoro-N-{2-(methyloxy)-5-[4-(4-pyridazinyl)-6-quinolinyl]-3-pyridinyl}benzenesulfonamide (GSK2126458, 1) has been identified as a highly potent, orally bioavailable inhibitor of PI3Kα and mTOR with in vivo activity in both pharmacodynamic and tumor growth efficacy models. Compound 1 is currently being evaluated in human clinical trials for the treatment of cancer.


    Organizational Affiliation

    GlaxoSmithKline, 1250 South Collegeville Road, Collegeville, Pennsylvania 19426.




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
ZIG
Query on ZIG

Download SDF File 
Download CCD File 
A
2,4-difluoro-N-[2-methoxy-5-(4-pyridazin-4-ylquinolin-6-yl)pyridin-3-yl]benzenesulfonamide
C25 H17 F2 N5 O3 S
CGBJSGAELGCMKE-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
ZIGKi: 0.06 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.198 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 145.617α = 90.00
b = 68.410β = 94.72
c = 107.470γ = 90.00
Software Package:
Software NamePurpose
PHENIXmodel building
PHENIXrefinement
HKL-2000data reduction
PHENIXphasing
HKL-2000data scaling
HKL-2000data collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-06-23
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2018-04-18
    Type: Data collection, Database references