6C1S

Phosphoinositide 3-Kinase gamma bound to an pyrrolopyridinone Inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.31 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.199 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Design and Synthesis of a Novel Series of Orally Bioavailable, CNS-Penetrant, Isoform Selective Phosphoinositide 3-Kinase gamma (PI3K gamma ) Inhibitors with Potential for the Treatment of Multiple Sclerosis (MS).

Come, J.H.Collier, P.N.Henderson, J.A.Pierce, A.C.Davies, R.J.Le Tiran, A.O'Dowd, H.Bandarage, U.K.Cao, J.Deininger, D.Grey, R.Krueger, E.B.Lowe, D.B.Liang, J.Liao, Y.Messersmith, D.Nanthakumar, S.Sizensky, E.Wang, J.Xu, J.Chin, E.Y.Damagnez, V.Doran, J.D.Dworakowski, W.Griffith, J.P.Jacobs, M.D.Khare-Pandit, S.Mahajan, S.Moody, C.S.Aronov, A.M.

(2018) J Med Chem 61: 5245-5256

  • DOI: https://doi.org/10.1021/acs.jmedchem.8b00085
  • Primary Citation of Related Structures:  
    6C1S

  • PubMed Abstract: 

    The lipid kinase phosphoinositide 3-kinase γ (PI3Kγ) has attracted attention as a potential target to treat a variety of autoimmune disorders, including multiple sclerosis, due to its role in immune modulation and microglial activation. By minimizing the number of hydrogen bond donors while targeting a previously uncovered selectivity pocket adjacent to the ATP binding site of PI3Kγ, we discovered a series of azaisoindolinones as selective, brain penetrant inhibitors of PI3Kγ. This ultimately led to the discovery of 16, an orally bioavailable compound that showed efficacy in murine experimental autoimmune encephalomyelitis (EAE), a preclinical model of multiple sclerosis.


  • Organizational Affiliation

    Vertex Pharmaceuticals Incorporated , 50 Northern Avenue , Boston , Massachusetts 02210 , United States.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit gamma isoform971Homo sapiensMutation(s): 0 
Gene Names: PIK3CG
EC: 2.7.1.153 (PDB Primary Data), 2.7.11.1 (PDB Primary Data), 2.7.1.137 (UniProt), 2.7.1.154 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P48736 (Homo sapiens)
Explore P48736 
Go to UniProtKB:  P48736
PHAROS:  P48736
GTEx:  ENSG00000105851 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP48736
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.31 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.199 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 144.76α = 90
b = 67.55β = 95.53
c = 107.53γ = 90
Software Package:
Software NamePurpose
BUSTERrefinement
XDSdata reduction
autoPROCdata scaling
BUSTERphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2018-06-27
    Type: Initial release
  • Version 1.1: 2018-07-11
    Changes: Data collection, Database references
  • Version 1.2: 2023-10-04
    Changes: Data collection, Database references, Refinement description