4M3L:
reference: Molecular basis for the fold organization and sarcomeric targeting of the muscle atrogin MuRF1., Franke B, Gasch A, Rodriguez D, Chami M, Khan MM, Rudolf R, Bibby J, Hanashima A, Bogomolovas J, von Castelmur E, Rigden DJ, Uson I, Labeit S, Mayans O, Open Biol. 2014 Mar 26;4:130172. doi: 10.1098/rsob.130172. PMID: 24671946

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