4TKX:
reference: Structure of the lysine specific protease Kgp from Porphyromonas gingivalis, a target for improved oral health., Gorman MA, Seers CA, Michell BJ, Feil SC, Huq NL, Cross KJ, Reynolds EC, Parker MW, Protein Sci. 2015 Jan;24(1):162-6. doi: 10.1002/pro.2589. Epub 2014 Dec 3. PMID: 25327141

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