7C90:
reference: Crystal structure of Cytochrome cL from the aquatic methylotrophic bacterium Methylophaga aminisulfidivorans MP(T)., Ghosh S, Dhanasingh I, Ryu J, Kim SW, Lee SH, J Microbiol Biotechnol. 2020 Jul 3. pii: jmb.2006.06029. doi:, 10.4014/jmb.2006.06029. PMID: 32627749

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