5VYG:
reference: O-Glycosylation modulates the stability of epidermal growth factor-like repeats and thereby regulates Notch trafficking., Takeuchi H, Yu H, Hao H, Takeuchi M, Ito A, Li H, Haltiwanger RS, J Biol Chem. 2017 Sep 22;292(38):15964-15973. doi: 10.1074/jbc.M117.800102. Epub , 2017 Jul 20. PMID: 28729422

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