4M0D:
reference: Structure of MurNAc 6-phosphate hydrolase (MurQ) from Haemophilus influenzae with a bound inhibitor., Hadi T, Hazra S, Tanner ME, Blanchard JS, Biochemistry. 2013 Dec 23;52(51):9358-66. doi: 10.1021/bi4010446. Epub 2013 Nov, 22. PMID: 24251551

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