4ITC:
reference: The lysine gingipain adhesin domains from Porphyromonas gingivalis interact with erythrocytes and albumin: Structures correlate to function., Ganuelas LA, Li N, Yun P, Hunter N, Collyer CA, Eur J Microbiol Immunol (Bp). 2013 Sep;3(3):152-62. doi:, 10.1556/EuJMI.3.2013.3.2. Epub 2013 Sep 23. PMID: 24265933

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