ISDA

Deposition Date 2016-08-23

Release Date 2017-04-19

Last Version Date 2024-05-08

Entry Detail

PDB ID:

5T2B

Keywords:

TRANSFERASE

Title:

mPI3Kd IN COMPLEX WITH 5e

Biological Source:

Source Organism:

Mus musculus (Taxon ID: 10090)

Host Organism:

Insect cell expression vector pTIE1

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.30 Å

R-Value Free:

0.27

R-Value Work:

0.22

R-Value Observed:

0.22

Space Group:

C 1 2 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit delta isoform
Gene (Uniprot):Pik3cd
Chain IDs:A
Chain Length:939
Number of Molecules:1
Biological Source:Mus musculus

UniProt ID:O35904 Pfam ID:PF00794, PF00792, PF00613, PF00454 EC:2.7.1.153

Ligand Molecules

74O

Primary Citation

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.Show

Bioorg. Med. Chem. Lett. 27 679 687 (2017)

PMID: 28017532 DOI: 10.1016/j.bmcl.2016.11.004

Abstact

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 IC50⩽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.

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Primary Citation of related structures