1LTD:
reference: The 2.6-A refined structure of the Escherichia coli recombinant Saccharomyces cerevisiae flavocytochrome b2-sulfite complex., Tegoni M, Cambillau C, Protein Sci 1994 Feb;3(2):303-13. PMID: 8003966

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