1KMK:
reference: Analysis of the E. coli NifS CsdB protein at 2.0 A reveals the structural basis for perselenide and persulfide intermediate formation., Lima CD, J Mol Biol. 2002 Feb 1;315(5):1199-208. PMID: 11827487

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