5XNR:
reference: Functional and Structural Studies of a Multidomain Alginate Lyase from Persicobacter sp. CCB-QB2., Sim PF, Furusawa G, Teh AH, Sci Rep. 2017 Oct 20;7(1):13656. doi: 10.1038/s41598-017-13288-1. PMID: 29057942

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