A highly oxidized form of these structures is found in proteins in the HiPIP family.
Several nitrosyl groups are bound to one of these structures in both Roussin's red and black salts. DNA glyco∙sylases use these structures to recognize damaged DNA bases. A protein containing a corrinoid ring and one of these structures transfers a methyl group from methyl-tetra∙hydro∙folate to carbon monoxide in order to form acetyl-coA in the Wood-Ljungdahl pathway. A highly oxidized form of these structures is found in proteins in the HiPIP family. These structures can assume a cubane-like conformation in which up to 4 corners of the cube can bind to cysteine residues. One of these structures binds to citrate in a protein which forms isocitrate in the first step of the Krebs cycle. For 10 points, name these clusters which are found in a group of proteins in the electron transport chain called the ferredoxins and are named for the two elements which comprise them.
Several nitrosyl groups are bound to one of these structures in both Roussin's red and black salts.
iron-sulfur clusters