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.

Macromolecule Content

• Total Structure Weight: 111013.43 
• Atom Count: 6824 
• Residue Count: 966 
• Unique protein chains: 1

2A5U

Crystal Structure of human PI3Kgamma complexed with AS605240

• DOI: 10.2210/pdb2A5U/pdb

• Classification: TRANSFERASE
• Organism(s): Homo sapiens
• Expression System: Spodoptera frugiperda


• Deposited: 2005-07-01 Released: 2005-09-20 
• Deposition Author(s): Camps, M., Ruckle, T., Ji, H., Ardissone, V., Rintelen, F., Shaw, J., Ferrandi, C., Chabert, C., Gillieron, C., Francon, B., Martin, T., Gretener, D., Perrin, D., Leroy, D., Vitte, P.-A., Hirsch, E., Wymann, M.P., Cirillo, R., Schwarz, M.K., Rommel, C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.7 Å
• R-Value Free: 0.351 
• R-Value Work: 0.279 

Literature

Blockade of PI3Kgamma suppresses joint inflammation and damage in mouse models of rheumatoid arthritis

Camps, M., Ruckle, T., Ji, H., Ardissone, V., Rintelen, F., Shaw, J., Ferrandi, C., Chabert, C., Gillieron, C., Francon, B., Martin, T., Gretener, D., Perrin, D., Leroy, D., Vitte, P.-A., Hirsch, E., Wymann, M.P., Cirillo, R., Schwarz, M.K., Rommel, C.

(2005) NAT.MED. (N.Y.) 11: 936-943

• PubMed: 16127437 
• DOI: 10.1038/nm1284
• Primary Citation of Related Structures:  
  2A4Z


• PubMed Abstract: 
  

Phosphoinositide 3-kinases (PI3K) have long been considered promising drug targets for the treatment of inflammatory and autoimmune disorders as well as cancer and cardiovascular diseases. But the lack of specificity, isoform selectivity and poor biopharmaceutical profile of PI3K inhibitors have so far hampered rigorous disease-relevant target validation. Here we describe the identification and development of specific, selective and orally active small-molecule inhibitors of PI3Kgamma (encoded by Pik3cg). We show that Pik3cg(-/-) mice are largely protected in mouse models of rheumatoid arthritis; this protection correlates with defective neutrophil migration, further validating PI3Kgamma as a therapeutic target. We also describe that oral treatment with a PI3Kgamma inhibitor suppresses the progression of joint inflammation and damage in two distinct mouse models of rheumatoid arthritis, reproducing the protective effects shown by Pik3cg(-/-) mice. Our results identify selective PI3Kgamma inhibitors as potential therapeutic molecules for the treatment of chronic inflammatory disorders such as rheumatoid arthritis.

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Organizational Affiliation: 

Serono Pharmaceutical Research Institute, Serono International S.A., 14, Chemin des Aulx, 1228 Plan-les-Ouates, Geneva, Switzerland.

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 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
QYT	A	(5E)-5-(QUINOXALIN-6-YLMETHYLENE)-1,3-THIAZOLIDINE-2,4-DIONE 5-QUINOXALIN-6-YLMETHYLENE-THIAZOLIDINE-2,4-DIONE C12 H7 N3 O2 S SQWZFLMPDUSYGV-POHAHGRESA-N

External Ligand Annotations
ID	Binding Affinity (Sequence Identity %)
QYT	IC50: 8 - 9 nM (99) BINDINGDB
QYT	IC50: 8 nM PDBBIND

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.7 Å
• R-Value Free: 0.351 
• R-Value Work: 0.279 
• Space Group: C 1 2 1

Unit Cell:

Length (Å)	Angle (°)
a = 140.446	α = 90.00
b = 67.406	β = 96.35
c = 105.971	γ = 90.00

Software Package:

Software Name	Purpose
PDB_EXTRACT	data extraction
CNS	refinement
CCP4	data scaling
AMoRE	phasing
CNX	refinement
SCALA	data scaling
MOSFLM	data reduction

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2005-07-01 
• Released Date: 2005-09-20 
• Deposition Author(s): Camps, M., Ruckle, T., Ji, H., Ardissone, V., Rintelen, F., Shaw, J., Ferrandi, C., Chabert, C., Gillieron, C., Francon, B., Martin, T., Gretener, D., Perrin, D., Leroy, D., Vitte, P.-A., Hirsch, E., Wymann, M.P., Cirillo, R., Schwarz, M.K., Rommel, C.

Revision History 

• Version 1.0: 2005-09-20
  Type: Initial release
• Version 1.1: 2008-04-30
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance
• Version 1.3: 2017-10-11
  Type: Refinement description