3MJW

PI3 Kinase gamma with a benzofuranone inhibitor

• PDB DOI: https://doi.org/10.2210/pdb3MJW/pdb

• Classification: TRANSFERASE
• Organism(s): Homo sapiens
• Expression System: Spodoptera frugiperda
• Mutation(s): No 


• Deposited: 2010-04-13 Released: 2010-06-09 
• Deposition Author(s): Bard, J., Svenson, K.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.87 Å
• R-Value Free: 0.281 
• R-Value Work: 0.225 

Starting Model: experimental

Literature

5-Ureidobenzofuranone indoles as potent and efficacious inhibitors of PI3 kinase-alpha and mTOR for the treatment of breast cancer.

Zhang, N., Ayral-Kaloustian, S., Anderson, J.T., Nguyen, T., Das, S., Venkatesan, A.M., Brooijmans, N., Lucas, J., Yu, K., Hollander, I., Mallon, R.

(2010) Bioorg Med Chem Lett 20: 3526-3529

• PubMed: 20483602 
• DOI: https://doi.org/10.1016/j.bmcl.2010.04.139
• Primary Citation of Related Structures:  
  3MJW


• PubMed Abstract: 
  

  A series of 5-ureidobenzofuran-3-one indoles as potent inhibitors of PI3Kalpha and mTOR has been developed. The best potency in cells was obtained when the urea group was extended to a 4-[2-(dimethylamino)ethyl]methylamino amidophenyl group. A 7-fluoro group on the indole ring also enhanced cellular potency. Compound 18i, incorporating the optimal functional groups, showed high potency in cellular lines and was further studied in vivo. It was able to inhibit the biomarker phosphorylation for 8h when dosed at 25 mg/kg iv. In the MDA-MB-361 breast cancer model, it shrank the tumor size remarkably when dosed at 25 mg/kg iv on days 1, 5, and 9.

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Organizational Affiliation: 

Discovery Medicinal Chemistry, Wyeth Research, Pearl River, NY 10965, USA. [e-mail]

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

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

Macromolecule Content

• Total Structure Weight: 111.13 kDa 
• Atom Count: 6,472 
• Modelled Residue Count: 819 
• Deposited Residue Count: 966 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
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 (PDB Primary Data), 2.7.1.137 (UniProt), 2.7.1.154 (UniProt), 2.7.11.1 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P48736 (Homo sapiens) Explore P48736  Go to UniProtKB:  P48736
PHAROS:  P48736 GTEx:  ENSG00000105851

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
WYF	B [auth A]	(2Z)-4,6-dihydroxy-2-[(8-methoxy-1,2,3,4-tetrahydropyrazino[1,2-a]indol-10-yl)methylidene]-1-benzofuran-3(2H)-one C21 H18 N2 O5 HUEDLQSVQCSQPS-OCKHKDLRSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.87 Å
• R-Value Free: 0.281 
• R-Value Work: 0.225 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 145.6	α = 90
b = 68.573	β = 95.02
c = 107.246	γ = 90

Software Package:

Software Name	Purpose
PHASER	phasing
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2010-06-09 
Deposition Author(s): Bard, J., Svenson, K.

Revision History  

• Version 1.0: 2010-06-09
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2023-09-06
  Changes: Data collection, Database references, Derived calculations, Refinement description