ISDA

Deposition Date 2012-02-03

Release Date 2012-05-16

Last Version Date 2023-09-13

Entry Detail

PDB ID:

4DK5

Keywords:

Transferase/Inhibitor

Title:

Crystal structure of human PI3K-gamma in complex with a pyridyl-triazine inhibitor

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Spodoptera frugiperda

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.95 Å

R-Value Free:

0.28

R-Value Work:

0.21

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:959
Number of Molecules:1
Biological Source:Homo sapiens

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

Ligand Molecules

0KO

SO4

Primary Citation

Structure-based design of a novel series of potent, selective inhibitors of the class I phosphatidylinositol 3-kinases.

Smith, A.L, D'Angelo, N.D, Bo, Y.Y, Booker, S.K, Cee, V.J, Herberich, B, Hong, F.T, Jackson, C.L, Lanman, B.A, Liu, L, Nishimura, N, Pettus, L.H, Reed, A.B, Tadesse, S, Tamayo, N.A, Wurz, R.P, Yang, K, Andrews, K.L, Whittington, D.A, McCarter, J.D, Miguel, T.S, Zalameda, L, Jiang, J, Subramanian, R, Mullady, E.L, Caenepeel, S, Freeman, D.J, Wang, L, Zhang, N, Wu, T, Hughes, P.E, Norman, M.H.Show

J.Med.Chem. 55 5188 5219 (2012)

PMID: 22548365 DOI: 10.1021/jm300184s

Abstact

A highly selective series of inhibitors of the class I phosphatidylinositol 3-kinases (PI3Ks) has been designed and synthesized. Starting from the dual PI3K/mTOR inhibitor 5, a structure-based approach was used to improve potency and selectivity, resulting in the identification of 54 as a potent inhibitor of the class I PI3Ks with excellent selectivity over mTOR, related phosphatidylinositol kinases, and a broad panel of protein kinases. Compound 54 demonstrated a robust PD-PK relationship inhibiting the PI3K/Akt pathway in vivo in a mouse model, and it potently inhibited tumor growth in a U-87 MG xenograft model with an activated PI3K/Akt pathway.

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Primary Citation of related structures