2IUB:
reference: Crystal structure of a divalent metal ion transporter CorA at 2.9 angstrom resolution., Eshaghi S, Niegowski D, Kohl A, Martinez Molina D, Lesley SA, Nordlund P, Science. 2006 Jul 21;313(5785):354-7. PMID: 16857941

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