5T2B

mPI3Kd IN COMPLEX WITH 5e


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.271 
  • R-Value Work: 0.222 

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:  

  • 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 s ...

    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

    Respiratory, Inflammation & Autoimmunity, Innovative Medicines and Early Development Biotech Unit, AstraZeneca, Pepparedsleden 1, Mölndal, 43183, Sweden.,Respiratory, Inflammation & Autoimmunity, Innovative Medicines and Early Development Biotech Unit, AstraZeneca, Pepparedsleden 1, Mölndal, 43183, Sweden. Electronic address: Ina.Terstiege@astrazeneca.com.,Discovery Sciences, Innovative Medicines and Early Development Biotech Unit, AstraZeneca, Pepparedsleden 1, Mölndal, 43183, Sweden.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit delta isoform
A
939Mus musculusMutation(s): 0 
Gene Names: Pik3cd
EC: 2.7.1.153
Find proteins for O35904 (Mus musculus)
Go to UniProtKB:  O35904
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
74O
Query on 74O

Download SDF File 
Download CCD File 
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 BINDINGMOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.271 
  • R-Value Work: 0.222 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 141.793α = 90.00
b = 64.498β = 103.36
c = 115.976γ = 90.00
Software Package:
Software NamePurpose
BUSTERrefinement
MOLREPphasing
SCALAdata scaling
iMOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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