5MCS:
reference: Solution structure and dynamics of the outer membrane cytochrome OmcF from Geobacter sulfurreducens., Dantas JM, Silva MA, Pantoja-Uceda D, Turner DL, Bruix M, Salgueiro CA, Biochim Biophys Acta. 2017 Apr 1. pii: S0005-2728(17)30056-7. doi:, 10.1016/j.bbabio.2017.03.007. PMID: 28377068

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