ISDA

Deposition Date 2014-03-06

Release Date 2014-05-14

Last Version Date 2024-02-28

Entry Detail

PDB ID:

4PS8

Keywords:

TRANSFERASE/TRANSFERASE INHIBITOR

Title:

Structure of PI3K gamma in complex with N-[6-(5,6-dimethoxypyridin-3-yl)-1,3-benzothiazol-2-yl]acetamide

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Spodoptera frugiperda

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.99 Å

R-Value Free:

0.27

R-Value Work:

0.19

R-Value Observed:

0.19

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 gamma isoform
Gene (Uniprot):PIK3CG
Chain IDs:A
Chain Length:966
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P48736 Pfam ID:PF00794, PF00792, PF00613, PF00454 EC:2.7.1.137

Ligand Molecules

2WK

Primary Citation

Structural Basis for Isoform Selectivity in a Class of Benzothiazole Inhibitors of Phosphoinositide 3-Kinase gamma.

Collier, P.N, Martinez-Botella, G, Cornebise, M, Cottrell, K.M, Doran, J.D, Griffith, J.P, Mahajan, S, Maltais, F, Moody, C.S, Huck, E.P, Wang, T, Aronov, A.M.Show

J.Med.Chem. 58 517 521 (2015)

PMID: 24754609 DOI: 10.1021/jm500362j

Abstact

Phosphoinositide 3-kinase γ (PI3Kγ) is an attractive target to potentially treat a range of disease states. Herein, we describe the evolution of a reported phenylthiazole pan-PI3K inhibitor into a family of potent and selective benzothiazole inhibitors. Using X-ray crystallography, we discovered that compound 22 occupies a previously unreported hydrophobic binding cleft adjacent to the ATP binding site of PI3Kγ, and achieves its selectivity by exploiting natural sequence differences among PI3K isoforms in this region.

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Primary Citation of related structures