2KPA:
reference: Specific motifs of the V-ATPase a2-subunit isoform interact with catalytic regulatory domains of ARNO., Merkulova M, Bakulina A, Thaker YR, Gruber G, Marshansky V, Biochim Biophys Acta. 2010 Feb 11. PMID: 20153292

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