5NGB

X-Ray Diffraction Crystal Structure of the murine PI3K p110delta in complex with a pan inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.242 
  • R-Value Observed: 0.245 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Identification of a Potent Phosphoinositide 3-Kinase Pan Inhibitor Displaying a Strategic Carboxylic Acid Group and Development of Its Prodrugs.

Pirali, T.Ciraolo, E.Aprile, S.Massarotti, A.Berndt, A.Griglio, A.Serafini, M.Mercalli, V.Landoni, C.Campa, C.C.Margaria, J.P.Silva, R.L.Grosa, G.Sorba, G.Williams, R.Hirsch, E.Tron, G.C.

(2017) ChemMedChem 12: 1542-1554

  • DOI: 10.1002/cmdc.201700340
  • Primary Citation of Related Structures:  
    5NGB

  • PubMed Abstract: 
  • Activation of the phosphoinositide 3-kinase (PI3K) pathway is a key signaling event in cancer, inflammation, and other proliferative diseases. PI3K inhibitors are already approved for some specific clinical indications, but their systemic on-target toxicity limits their larger use ...

    Activation of the phosphoinositide 3-kinase (PI3K) pathway is a key signaling event in cancer, inflammation, and other proliferative diseases. PI3K inhibitors are already approved for some specific clinical indications, but their systemic on-target toxicity limits their larger use. In particular, whereas toxicity is tolerable in acute treatment of life-threatening diseases, this is less acceptable in chronic conditions. In the past, the strategy to overcome this drawback was to block selected isoforms mainly expressed in leukocytes, but redundancy within the PI3K family members challenges the effectiveness of this approach. On the other hand, decreasing exposure to selected target cells represents a so-far unexplored alternative to circumvent systemic toxicity. In this manuscript, we describe the generation of a library of triazolylquinolones and the development of the first prodrug pan-PI3K inhibitor.


    Organizational Affiliation

    Kither Biotech S.r.l., Molecular Biotechnology Center, Via Nizza 52, 10126, Torino, Italy.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit delta isoformA1079Mus musculusMutation(s): 0 
Gene Names: Pik3cd
EC: 2.7.1.153
UniProt
Find proteins for O35904 (Mus musculus)
Explore O35904 
Go to UniProtKB:  O35904
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
8WH
Query on 8WH

Download Ideal Coordinates CCD File 
B [auth A]3-[[4-(2-morpholin-4-yl-4-oxidanylidene-3~{H}-quinolin-8-yl)-1,2,3-triazol-1-yl]methyl]benzoic acid
C23 H21 N5 O4
PJYOPNLTNBDQPR-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.242 
  • R-Value Observed: 0.245 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 63.437α = 90
b = 143.586β = 90
c = 220.193γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Medical Research Council (United Kingdom)United KingdomMC_U105184308

Revision History  (Full details and data files)

  • Version 1.0: 2017-09-13
    Type: Initial release
  • Version 1.1: 2017-09-27
    Changes: Database references
  • Version 1.2: 2019-02-20
    Changes: Advisory, Data collection, Derived calculations