5D4K: Crystal Structure Of The Human Polymeric Ig Receptor (Pigr)
reference: The structure and dynamics of secretory component and its interactions with polymeric immunoglobulins., Stadtmueller BM, Huey-Tubman KE, Lopez CJ, Yang Z, Hubbell WL, Bjorkman PJ, Elife. 2016 Mar 4;5. pii: e10640. doi: 10.7554/eLife.10640. PMID: 26943617

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