5AZE:
reference: Calcium-dependent antigen binding as a novel modality for antibody recycling by endosomal antigen dissociation., Hironiwa N, Ishii S, Kadono S, Iwayanagi Y, Mimoto F, Habu K, Igawa T, Hattori K, MAbs. 2016 Jan 2;8(1):65-73. doi: 10.1080/19420862.2015.1110660. Epub 2015 Oct, 23. PMID: 26496237

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