Crystal structures of PI3K-C2alpha PX domain indicate conformational change associated with ligand binding
Parkinson, G.N., Vines, D., Driscoll, P.C., Djordjevic, S.(2008) BMC Struct Biol 8: 13-13
- PubMed: 18312637 
- DOI: https://doi.org/10.1186/1472-6807-8-13
- Primary Citation of Related Structures:  
2REA, 2RED - PubMed Abstract: 
PX domains have specialized protein structures involved in binding of phosphoinositides (PIs). Through binding to the various PIs PX domains provide site-specific membrane signals to modulate the intracellular localisation and biological activity of effector proteins. Several crystal structures of these domains are now available from a variety of proteins. All PX domains contain a canonical core structure with main differences exhibited within the loop regions forming the phosphoinositide binding pockets. It is within these areas that the molecular basis for ligand specificity originates.
Organizational Affiliation: 
Cancer Research UK Biomolecular Structure Group, The School of Pharmacy, University of London, 29-39 Brunswick Square, London WC1N 1AX, UK. gary.parkinson@pharmacy.ac.uk