4TUU:
reference: Engineering of an isolated p110alpha subunit of PI3Kalpha permits crystallization and provides a platform for structure-based drug design., Chen P, Deng YL, Bergqvist S, Falk M, Liu W, Timofeevski S, Brooun A, Protein Sci. 2014 Jul 12. doi: 10.1002/pro.2517. PMID: 25043846

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).