5T2B

mPI3Kd IN COMPLEX WITH 5e


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.271 
  • R-Value Work: 0.222 
  • R-Value Observed: 0.224 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

Discovery of triazole aminopyrazines as a highly potent and selective series of PI3K delta inhibitors.

Terstiege, I.Perry, M.Petersen, J.Tyrchan, C.Svensson, T.Lindmark, H.Oster, L.

(2017) Bioorg Med Chem Lett 27: 679-687

  • DOI: 10.1016/j.bmcl.2016.11.004
  • Primary Citation of Related Structures:  
    5T2L, 5T2M, 5T2D, 5T2G, 5T2I, 5T2B, 5T23, 5T28, 5T27

  • PubMed Abstract: 
  • A novel class of potent PI3Kδ inhibitors with >1000-fold selectivity against other class I PI3K isoforms is described. Optimization of the substituents on a triazole aminopyrazine scaffold, emerging from an in-house PI3Kα program, turned moderately selective PI3Kδ compounds into highly potent and selective PI3Kδ inhibitors ...

    A novel class of potent PI3Kδ inhibitors with >1000-fold selectivity against other class I PI3K isoforms is described. Optimization of the substituents on a triazole aminopyrazine scaffold, emerging from an in-house PI3Kα program, turned moderately selective PI3Kδ compounds into highly potent and selective PI3Kδ inhibitors. These efforts resulted in a series of aminopyrazines with PI3Kδ IC 50 ⩽1nM in the enzyme assay, some of the most selective PI3Kδ inhibitors published to date, with a cell potency in a JeKo-cell assay of 20-120nM.


    Organizational Affiliation

    Discovery Sciences, Innovative Medicines and Early Development Biotech Unit, AstraZeneca, Pepparedsleden 1, Mölndal, 43183, Sweden.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit delta isoformA939Mus 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
74O
Query on 74O

Download Ideal Coordinates CCD File 
B [auth A]5-[1-methyl-5-(1-phenylcyclopropyl)-1,2,4-triazol-3-yl]-3-(1~{H}-pyrazol-4-yl)pyrazin-2-amine
C19 H18 N8
RJOTUMAUCUPABW-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
74OIC50:  5   nM  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.271 
  • R-Value Work: 0.222 
  • R-Value Observed: 0.224 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 141.793α = 90
b = 64.498β = 103.36
c = 115.976γ = 90
Software Package:
Software NamePurpose
BUSTERrefinement
iMOSFLMdata reduction
SCALAdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2017-04-19
    Type: Initial release