1Z2Y:
reference: Homology modelling of transferrin-binding protein A from Neisseria meningitidis., Oakhill JS, Sutton BJ, Gorringe AR, Evans RW, Protein Eng Des Sel. 2005 May;18(5):221-8. Epub 2005 Apr 8. PMID: 15820975

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