These structures are synthesized by a complex containing Nfs1, Isd11, Isu2, and Fxn, called the SDUF complex. A protein that is responsible for binding to these structures acquires extra GAA repeats in Friedrich's Ataxia. These structures can appear in butterfly and diamond 
These structures are synthesized by a complex containing Nfs1, Isd11, Isu2, and Fxn, called the SDUF complex. A protein that is responsible for binding to these structures acquires extra GAA repeats in Friedrich's Ataxia. These structures can appear in butterfly and diamond configurations. One enzyme has one of these structures in a cubic conformation coordinated to cysteine residues, and uses this structure to transform a (*) prochiral molecule to isocitrate in the first step of the Krebs cycle. This structure is commonly found in Rieske proteins. For 10 points, name these chemical structures found in several proteins involved in the electron-transport chain, like ferredoxin, and in the active site of aconitase, which consist of and are named for two elements.
These structures are synthesized by a complex containing Nfs1, Isd11, Isu2, and Fxn, called the SDUF complex.
iron-sulfur protein [or iron-sulfur clusters]