ISDA

Entry Detail

PDB ID:

5UBR

Keywords:

Title:

CRYSTAL STRUCTURE OF PI3K ALPHA IN COMPLEX WITH A 7-(3-(PIPERAZIN-1-YL)PHENYL)PYRROLO[2,1-F][1,2,4] TRIAZIN-4-AMINE DERIVIATINE

Biological Source:

Source Organism:

Homo sapiens

Host Organism:

unidentified baculovirus

PDB Version:

Deposition Date:

2016-12-21

Release Date:

2017-02-08

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.40 Å

R-Value Free:

0.24

R-Value Work:

0.20

R-Value Observed:

0.20

Space Group:

P 21 21 21

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform
Chain IDs:A
Chain Length:944
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P42336 Pfam ID:PF00794, PF00792, PF00613, PF00454 EC:2.7.1.137

Ligand Molecules

85S

Primary Citation

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.Show

Bioorg. Med. Chem. Lett. 27 855 861 (2017)

PMID: 28108251 DOI: 10.1016/j.bmcl.2017.01.016

Abstact

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.

Legend

Protein

Chemical

Disease

Primary Citation of related structures