ISDA: 6C1S

Deposition Date 2018-01-05

Release Date 2018-06-27

Last Version Date 2023-10-04

Entry Detail

PDB ID:

6C1S

Keywords:

Transferase/Transferase Inhibitor

Title:

Phosphoinositide 3-Kinase gamma bound to an pyrrolopyridinone Inhibitor

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Spodoptera frugiperda

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.31 Å

R-Value Free:

0.25

R-Value Work:

0.19

R-Value Observed:

0.19

Space Group:

C 1 2 1

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Macromolecular Entities

Structures with similar UniProt ID

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:971
Number of Molecules:1
Biological Source:Homo sapiens

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

Ligand Molecules

EFV

SO4

Primary Citation

Design and Synthesis of a Novel Series of Orally Bioavailable, CNS-Penetrant, Isoform Selective Phosphoinositide 3-Kinase gamma (PI3K gamma ) Inhibitors with Potential for the Treatment of Multiple Sclerosis (MS).

Come, J.H, Collier, P.N, Henderson, J.A, Pierce, A.C, Davies, R.J, Le Tiran, A, O'Dowd, H, Bandarage, U.K, Cao, J, Deininger, D, Grey, R, Krueger, E.B, Lowe, D.B, Liang, J, Liao, Y, Messersmith, D, Nanthakumar, S, Sizensky, E, Wang, J, Xu, J, Chin, E.Y, Damagnez, V, Doran, J.D, Dworakowski, W, Griffith, J.P, Jacobs, M.D, Khare-Pandit, S, Mahajan, S, Moody, C.S, Aronov, A.M.Show

J. Med. Chem. 61 5245 5256 (2018)

PMID: 29847724 DOI: 10.1021/acs.jmedchem.8b00085

Abstact

The lipid kinase phosphoinositide 3-kinase γ (PI3Kγ) has attracted attention as a potential target to treat a variety of autoimmune disorders, including multiple sclerosis, due to its role in immune modulation and microglial activation. By minimizing the number of hydrogen bond donors while targeting a previously uncovered selectivity pocket adjacent to the ATP binding site of PI3Kγ, we discovered a series of azaisoindolinones as selective, brain penetrant inhibitors of PI3Kγ. This ultimately led to the discovery of 16, an orally bioavailable compound that showed efficacy in murine experimental autoimmune encephalomyelitis (EAE), a preclinical model of multiple sclerosis.

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Primary Citation of related structures