Crystal structure of mouse PI3 kinase delta in complex with GSK2292767

Experimental Data Snapshot

  • Resolution: 2.44 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.190 

wwPDB Validation   3D Report Full Report

This is version 1.2 of the entry. See complete history


Optimization of Novel Indazoles as Highly Potent and Selective Inhibitors of Phosphoinositide 3-Kinase Gamma for the Treatment of Respiratory Disease.

Down, K.Amour, A.Baldwin, I.R.Cooper, A.W.J.Deakin, A.M.Felton, L.M.Guntrip, S.B.Hardy, C.Harrison, Z.A.Jones, K.L.Jones, P.Keeling, S.E.Le, J.Livia, S.Lucas, F.Lunniss, C.J.Parr, N.J.Robinson, E.Rowland, P.Smith, S.Thomas, D.A.Vitulli, G.Washio, Y.Hamblin, J.N.

(2015) J Med Chem 58: 7381

  • DOI: https://doi.org/10.1021/acs.jmedchem.5b00767
  • Primary Citation of Related Structures:  
    5AE8, 5AE9

  • PubMed Abstract: 

    Optimization of lead compound 1, through extensive use of structure-based design and a focus on PI3Kδ potency, isoform selectivity, and inhaled PK properties, led to the discovery of clinical candidates 2 (GSK2269557) and 3 (GSK2292767) for the treatment of respiratory indications via inhalation. Compounds 2 and 3 are both highly selective for PI3Kδ over the closely related isoforms and are active in a disease relevant brown Norway rat acute OVA model of Th2-driven lung inflammation.

  • Organizational Affiliation

    Refractory Respiratory Inflammation DPU, and ‡Allergic Inflammation DPU, Respiratory Therapeutic Area, GlaxoSmithKline R&D , Gunnels Wood Road, Stevenage, SG1 2NY, U.K.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit delta isoform940Mus musculusMutation(s): 0 
Gene Names: Pik3cd
EC: (PDB Primary Data), (PDB Primary Data)
Find proteins for O35904 (Mus musculus)
Explore O35904 
Go to UniProtKB:  O35904
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO35904
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on OKO

Download Ideal Coordinates CCD File 
C24 H28 N6 O5 S
Binding Affinity Annotations 
IDSourceBinding Affinity
OKO Binding MOAD:  5AE9 Ki: 0.08 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Resolution: 2.44 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.190 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 142.3α = 90
b = 64.62β = 103.32
c = 116.37γ = 90
Software Package:
Software NamePurpose
autoPROCdata reduction
Aimlessdata scaling

Structure Validation

View Full Validation Report

Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2015-09-16
    Type: Initial release
  • Version 1.1: 2015-10-07
    Changes: Database references
  • Version 1.2: 2021-09-29
    Changes: Data collection, Database references, Derived calculations, Other, Refinement description, Source and taxonomy, Structure summary