3T8M

Rational Design of PI3K-alpha Inhibitors that Exhibit Selectivity Over the PI3K-beta Isoform

• PDB DOI: https://doi.org/10.2210/pdb3T8M/pdb

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


• Deposited: 2011-08-01 Released: 2011-11-16 
• Deposition Author(s): Murray, J.M., Wiesmann, C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.254 
• R-Value Work: 0.204 
• R-Value Observed: 0.207 

Literature

Rational Design of PI3K-alpha Inhibitors that Exhibit Selectivity Over the PI3K-beta Isoform

Heffron, T., Wei, B., Olivero, A.G., Staben, S.T., Tsui, V., Do, S., Dotson, J., Folkes, A., Goldsmith, A., Goldsmith, R., Gunzner, J., Lesnick, J., Lewis, C., Mathieu, S., Nonomiya, J., Sutherlin, D.P., Wan, N.C., Wang, S., Weismann, C., Zhu, B.

To be published.

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: 111.28 kDa 
• Atom Count: 6,865 
• Modelled Residue Count: 841 
• 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
3T8	B [auth A]	N~2~-{2-chloro-4-[(4-methylpiperazin-1-yl)carbonyl]phenyl}-N~2~,N~8~-dimethyl-4,5-dihydrothieno[3,2-d][1]benzoxepine-2,8-dicarboxamide C28 H29 Cl N4 O4 S TVUWQOATJJJPPP-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.254 
• R-Value Work: 0.204 
• R-Value Observed: 0.207 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 143.219	α = 90
b = 67.651	β = 95.55
c = 106.627	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
PHASER	phasing
PHENIX	refinement
PDB_EXTRACT	data extraction
Blu-Ice	data collection

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-11-16 
Deposition Author(s): Murray, J.M., Wiesmann, C.

Revision History  

• Version 1.0: 2011-11-16
  Type: Initial release
  
• Version 1.1: 2017-11-08
  Changes: Refinement description
• Version 1.2: 2024-02-28
  Changes: Data collection, Database references, Derived calculations