5ITD

Crystal structure of PI3K alpha with PI3K delta inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.02 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.193 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Discovery and Pharmacological Characterization of Novel Quinazoline-Based PI3K Delta-Selective Inhibitors.

Hoegenauer, K.Soldermann, N.Stauffer, F.Furet, P.Graveleau, N.Smith, A.B.Hebach, C.Hollingworth, G.J.Lewis, I.Gutmann, S.Rummel, G.Knapp, M.Wolf, R.M.Blanz, J.Feifel, R.Burkhart, C.Zecri, F.

(2016) Acs Med.Chem.Lett. 7: 762-767

  • DOI: 10.1021/acsmedchemlett.6b00119
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Inhibition of the lipid kinase PI3Kδ is a promising principle to treat B and T cell driven inflammatory diseases. Using a scaffold deconstruction-reconstruction strategy, we identified 4-aryl quinazolines that were optimized into potent PI3Kδ isoform ...

    Inhibition of the lipid kinase PI3Kδ is a promising principle to treat B and T cell driven inflammatory diseases. Using a scaffold deconstruction-reconstruction strategy, we identified 4-aryl quinazolines that were optimized into potent PI3Kδ isoform selective analogues with good pharmacokinetic properties. With compound 11, we illustrate that biochemical PI3Kδ inhibition translates into modulation of isoform-dependent immune cell function (human, rat, and mouse). After oral administration of compound 11 to rats, proximal PD markers are inhibited, and dose-dependent efficacy in a mechanistic plaque forming cell assay could be demonstrated.


    Organizational Affiliation

    Global Discovery Chemistry, Center for Proteomic Chemistry, Metabolism and Pharmacokinetics, Autoimmunity, Transplantation and Inflammation, Novartis Institutes for BioMedical Research , Novartis Campus, CH-4002 Basel, Switzerland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform
A
1074Homo sapiensMutation(s): 2 
Gene Names: PIK3CA
EC: 2.7.1.153
Find proteins for P42336 (Homo sapiens)
Go to Gene View: PIK3CA
Go to UniProtKB:  P42336
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Phosphatidylinositol 3-kinase regulatory subunit alpha
B
323Homo sapiensMutation(s): 0 
Gene Names: PIK3R1 (GRB1)
Find proteins for P27986 (Homo sapiens)
Go to Gene View: PIK3R1
Go to UniProtKB:  P27986
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
6CY
Query on 6CY

Download SDF File 
Download CCD File 
A
5-{4-[3-(4-acetylpiperazine-1-carbonyl)phenyl]quinazolin-6-yl}-2-methoxypyridine-3-carbonitrile
C28 H24 N6 O3
QYTXJLQBSYAMGR-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.02 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.193 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 104.645α = 90.00
b = 107.352β = 90.00
c = 134.502γ = 90.00
Software Package:
Software NamePurpose
BUSTER-TNTrefinement
Aimlessdata scaling
PHASERphasing
PDB_EXTRACTdata extraction
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-09-07
    Type: Initial release