5UBT

CRYSTAL STRUCTURE OF PI3K DELTA 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: 2.83 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.215 
  • R-Value Observed: 0.216 

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:  
    5UBR, 5UBT

  • 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, such as RA, SLE, and respiratory ailments ...

    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.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit delta isoformA1013Homo sapiensMutation(s): 0 
Gene Names: PIK3CD
EC: 2.7.1.153
UniProt & NIH Common Fund Data Resources
Find proteins for O00329 (Homo sapiens)
Explore O00329 
Go to UniProtKB:  O00329
PHAROS:  O00329
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Phosphatidylinositol 3-kinase regulatory subunit alphaB168Homo sapiensMutation(s): 4 
Gene Names: PIK3R1GRB1
UniProt & NIH Common Fund Data Resources
Find proteins for P27986 (Homo sapiens)
Explore P27986 
Go to UniProtKB:  P27986
PHAROS:  P27986
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
85S
Query on 85S

Download Ideal Coordinates CCD File 
C [auth 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: 2.83 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.215 
  • R-Value Observed: 0.216 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 90.662α = 90
b = 108.603β = 90
c = 142.903γ = 90
Software Package:
Software NamePurpose
BUSTERrefinement
XDSdata reduction
XSCALEdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

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

Revision History  (Full details and data files)

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