3ND9:
reference: The Transition-Like State and P(i) Entrance into the Catalytic A Subunit of the Biological Engine A-ATP Synthase., Manimekalai MS, Kumar A, Jeyakanthan J, Gruber G, J Mol Biol. 2011 Mar 16. PMID: 21396943

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