ISDA

Deposition Date 2010-01-25

Release Date 2010-04-14

Last Version Date 2023-09-06

Entry Detail

PDB ID:

3LJ3

Keywords:

TRANSFERASE

Title:

PI3-kinase-gamma with a pyrrolopyridine-benzofuran inhibitor

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Spodoptera frugiperda

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.43 Å

R-Value Free:

0.26

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 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

SO4

WYE

Primary Citation

Discovery and optimization of 2-(4-substituted-pyrrolo[2,3-b]pyridin-3-yl)methylene-4-hydroxybenzofuran-3(2H)-ones as potent and selective ATP-competitive inhibitors of the mammalian target of rapamycin (mTOR).

Tsou, H.R, MacEwan, G, Birnberg, G, Grosu, G, Bursavich, M.G, Bard, J, Brooijmans, N, Toral-Barza, L, Hollander, I, Mansour, T.S, Ayral-Kaloustian, S, Yu, K.Show

Bioorg.Med.Chem.Lett. 20 2321 2325 (2010)

PMID: 20188552 DOI: 10.1016/j.bmcl.2010.01.135

Abstact

We discovered 2-(4-substituted-pyrrolo[2,3-b]pyridin-3-yl)methylene-4-hydroxybenzofuran-3(2H)-ones as potent and selective ATP-competitive inhibitors of the mammalian target of rapamycin (mTOR). Since phenolic OH groups pose metabolic liability, one of the two hydroxyl groups was selectively removed. The SAR data showed the structural features necessary for subnanomolar inhibitory activity against mTOR kinase as well as selectivity over PI3Kalpha. An X-ray co-crystal structure of one inhibitor with the mTOR-related PI3Kgamma revealed the key hydrogen bonding interactions.

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Primary Citation of related structures