ISDA

Deposition Date 2016-03-15

Release Date 2016-08-10

Last Version Date 2024-01-10

Entry Detail

PDB ID:

5IS5

Keywords:

TRANSFERASE

Title:

Discovery and Pharmacological Characterization of Novel Quinazoline-based PI3K delta-selective Inhibitors

Biological Source:

Source Organism:

Mus musculus (Taxon ID: 10090)

Host Organism:

Spodoptera frugiperda

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.85 Å

R-Value Free:

0.27

R-Value Work:

0.22

Space Group:

C 1 2 1

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit delta isoform
Chain IDs:A
Chain Length:1044
Number of Molecules:1
Biological Source:Mus musculus

UniProt ID:O35904 Pfam ID:PF02192, PF00794, PF00792, PF00613, PF00454

Ligand Molecules

6CY

Primary Citation

Discovery and Pharmacological Characterization of Novel Quinazoline-Based PI3K Delta-Selective Inhibitors.

Hoegenauer, K, Soldermann, N, Stauffer, F, Furet, P, Graveleau, N, Smith, A.B, Hebach, C, Hollingworth, G.J, Lewis, I, Gutmann, S, Rummel, G, Knapp, M, Wolf, R.M, Blanz, J, Feifel, R, Burkhart, C, Zecri, F.Show

Acs Med.Chem.Lett. 7 762 767 (2016)

PMID: 27563400 DOI: 10.1021/acsmedchemlett.6b00119

Abstact

Inhibition of the lipid kinase PI3Kδ is a promising principle to treat B and T cell driven inflammatory diseases. Using a scaffold deconstruction-reconstruction strategy, we identified 4-aryl quinazolines that were optimized into potent PI3Kδ isoform selective analogues with good pharmacokinetic properties. With compound 11, we illustrate that biochemical PI3Kδ inhibition translates into modulation of isoform-dependent immune cell function (human, rat, and mouse). After oral administration of compound 11 to rats, proximal PD markers are inhibited, and dose-dependent efficacy in a mechanistic plaque forming cell assay could be demonstrated.

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Primary Citation of related structures