5NO0: Beta Domain Of Human Transcobalamin In Apo Form
reference: Structure of the human transcobalamin beta domain in four distinct states., Bloch JS, Ruetz M, Krautler B, Locher KP, PLoS One. 2017 Sep 14;12(9):e0184932. doi: 10.1371/journal.pone.0184932., eCollection 2017. PMID: 28910388

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