2AR5

Crystal structure of the mammalian C2alpha-PI3 Kinase PX-domain

• PDB DOI: https://doi.org/10.2210/pdb2AR5/pdb

• Classification: TRANSFERASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 
• Membrane Protein: Yes  OPM


• Deposited: 2005-08-19 Released: 2006-10-24 
• Deposition Author(s): Parkinson, G.N., Vines, D., Driscoll, P.C., Djordjevic, S.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.244 
• R-Value Work: 0.222 
• R-Value Observed: 0.223 

Starting Model: experimental

Literature

Ligand-binding specificity of PI3Kinase C2alpha PX domain.

Parkinson, G.N., Vines, D., Driscoll, P.C., Djordjevic, S.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 14.93 kDa 
• Atom Count: 1,085 
• Modelled Residue Count: 117 
• Deposited Residue Count: 121 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Phosphoinositide 3-kinase	A	121	Homo sapiens	Mutation(s): 0  Gene Names: PI3KC2A EC: 2.7.1.154 (PDB Primary Data), 2.7.1.137 (UniProt), 2.7.1.153 (UniProt) Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for O00443 (Homo sapiens) Explore O00443  Go to UniProtKB:  O00443
PHAROS:  O00443 GTEx:  ENSG00000011405

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GOL	B [auth A], C [auth A], D [auth A], E [auth A], F [auth A], G [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.244 
• R-Value Work: 0.222 
• R-Value Observed: 0.223 
• Space Group: P 3₁ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 56.554	α = 90
b = 56.554	β = 90
c = 92.894	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
EPMR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-10-24 
Deposition Author(s): Parkinson, G.N., Vines, D., Driscoll, P.C., Djordjevic, S.

Revision History  

• Version 1.0: 2006-10-24
  Type: Initial release
  
• Version 1.1: 2008-04-30
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 1.3: 2023-08-23
  Changes: Data collection, Database references, Derived calculations, Refinement description