Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

Standalone Viewers  
Protein Workshop | Ligand Explorer

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 111016.34 
• Atom Count: 6600 
• Residue Count: 966 
• Unique protein chains: 1

3APD

Crystal structure of human PI3K-gamma in complex with CH5108134

• DOI: 10.2210/pdb3APD/pdb

• Classification: Transferase/Transferase inhibitor
• Organism(s): Homo sapiens
• Expression System: Spodoptera frugiperda


• Deposited: 2010-10-14 Released: 2011-04-13 
• Deposition Author(s): Nakamura, M., Fukami, T.A., Miyazaki, T., Yoshida, M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.55 Å
• R-Value Free: 0.316 
• R-Value Work: 0.250 

Literature

Discovery and biological activity of a novel class I PI3K inhibitor, CH5132799

Ohwada, J., Ebiike, H., Kawada, H., Tsukazaki, M., Nakamura, M., Miyazaki, T., Morikami, K., Yoshinari, K., Yoshida, M., Kondoh, O., Kuramoto, S., Ogawa, K., Aoki, Y., Shimma, N.

(2011) Bioorg.Med.Chem.Lett. 21: 1767-1772

• PubMed: 21316229 
• DOI: 10.1016/j.bmcl.2011.01.065
• Primary Citation of Related Structures:  
  3APF, 3APC


• PubMed Abstract: 
  

Phosphatidylinositol 3-kinase (PI3K) is a lipid kinase and a promising therapeutic target for cancer. Using structure-based drug design (SBDD), we have identified novel PI3K inhibitors with a dihydropyrrolopyrimidine skeleton. Metabolic stability of the first lead series was drastically improved by replacing phenol with aminopyrimidine moiety. CH5132799, a novel class I PI3K inhibitor, exhibited a strong inhibitory activity especially against PI3Kα (IC(50)=0.014 μM). In human tumor cell lines with PI3K pathway activation, CH5132799 showed potent antiproliferative activity. CH5132799 is orally available and showed significant antitumor activity in PI3K pathway-activated human cancer xenograft models in mice.

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Organizational Affiliation: 

Research Division, Chugai Pharmaceutical Co., Ltd , Kamakura, Kanagawa, Japan. [e-mail]

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit gamma isoform	A	966	Homo sapiens	Mutation(s): 0  Gene Names: PIK3CG EC: 2.7.1.153
Find proteins for P48736 (Homo sapiens) Go to Gene View: PIK3CG Go to UniProtKB:  P48736

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
SO4	A	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
MMY	A	5-(2-Morpholin-4-yl-7-pyridin-3-yl-6,7-dihydro-5H-pyrrolo[2,3-d]pyrimidin-4-yl)-pyrimidin-2-ylamine C19 H20 N8 O WZVLQVVHYKFKAZ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.55 Å
• R-Value Free: 0.316 
• R-Value Work: 0.250 
• Space Group: C 1 2 1

Unit Cell:

Length (Å)	Angle (°)
a = 142.950	α = 90.00
b = 67.460	β = 95.68
c = 106.280	γ = 90.00

Software Package:

Software Name	Purpose
MOLREP	phasing
SCALA	data scaling
ADSC	data collection
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data reduction

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2010-10-14 
• Released Date: 2011-04-13 
• Deposition Author(s): Nakamura, M., Fukami, T.A., Miyazaki, T., Yoshida, M.

Revision History 

• Version 1.0: 2011-04-13
  Type: Initial release
• Version 1.1: 2011-07-13
  Type: Version format compliance