4FZR:
reference: Crystal structure of SsfS6, the putative C-glycosyltransferase involved in SF2575 biosynthesis., Wang F, Zhou M, Singh S, Yennamalli RM, Bingman CA, Thorson JS, Phillips GN Jr, Proteins. 2013 Mar 22. doi: 10.1002/prot.24289. PMID: 23526584

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