5UBR

CRYSTAL STRUCTURE OF PI3K ALPHA IN COMPLEX WITH A 7-(3-(PIPERAZIN-1-YL)PHENYL)PYRROLO[2,1-F][1,2,4] TRIAZIN-4-AMINE DERIVIATINE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.200 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Discovery of 7-(3-(piperazin-1-yl)phenyl)pyrrolo[2,1-f][1,2,4]triazin-4-amine derivatives as highly potent and selective PI3K delta inhibitors.

Qin, L.Y.Ruan, Z.Cherney, R.J.Dhar, T.G.Neels, J.Weigelt, C.A.Sack, J.S.Srivastava, A.S.Cornelius, L.A.Tino, J.A.Stefanski, K.Gu, X.Xie, J.Susulic, V.Yang, X.Yarde-Chinn, M.Skala, S.Bosnius, R.Goldstein, C.Davies, P.Ruepp, S.Salter-Cid, L.Bhide, R.S.Poss, M.A.

(2017) Bioorg. Med. Chem. Lett. 27: 855-861

  • DOI: 10.1016/j.bmcl.2017.01.016
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • As demonstrated in preclinical animal models, the disruption of PI3Kδ expression or its activity leads to a decrease in inflammatory and immune responses. Therefore, inhibition of PI3Kδ may provide an alternative treatment for autoimmune diseases, su ...

    As demonstrated in preclinical animal models, the disruption of PI3Kδ expression or its activity leads to a decrease in inflammatory and immune responses. Therefore, inhibition of PI3Kδ may provide an alternative treatment for autoimmune diseases, such as RA, SLE, and respiratory ailments. Herein, we disclose the identification of 7-(3-(piperazin-1-yl)phenyl)pyrrolo[2,1-f][1,2,4]triazin-4-amine derivatives as highly potent, selective and orally bioavailable PI3Kδ inhibitors. The lead compound demonstrated efficacy in an in vivo mouse KLH model.


    Organizational Affiliation

    Bristol-Myers Squibb, Rt. 206 & Province Line Road, Princeton, NJ 08540, USA. Electronic address: lan-ying.qin@bms.com.,Bristol-Myers Squibb, Rt. 206 & Province Line Road, Princeton, NJ 08540, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform
A
944Homo sapiensMutation(s): 0 
Gene Names: PIK3CA
EC: 2.7.1.153
Find proteins for P42336 (Homo sapiens)
Go to Gene View: PIK3CA
Go to UniProtKB:  P42336
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
85S
Query on 85S

Download SDF File 
Download CCD File 
A
1-[4-(3-{4-amino-5-[1-(oxan-4-yl)-1H-pyrazol-5-yl]pyrrolo[2,1-f][1,2,4]triazin-7-yl}phenyl)piperazin-1-yl]ethan-1-one
C26 H30 N8 O2
BYWWTRGEAVDHNY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.200 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 58.645α = 90.00
b = 134.805β = 90.00
c = 142.342γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
BUSTERrefinement
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2016-12-21 
  • Released Date: 2017-02-08 
  • Deposition Author(s): Sack, J.S.

Revision History 

  • Version 1.0: 2017-02-08
    Type: Initial release
  • Version 1.1: 2017-02-22
    Type: Database references