Iron-Sulfur Protein

Iron-Sulfur Protein:

 Proteins in which non-HEME iron is coordinated with cysteine sulfur and, usually, with inorganic sulfur. Divided into three major categories: RUBREDOXINs; simple iron-sulfur proteins, containing
only IRON-SULFUR CLUSTERs; and complex iron-sulfur proteins, containing additional active redox centers such as FLAVIN, molybdenum, or heme. In most iron-sulfur proteins, the clusters function as ELECTRON TRANSFER groups, but in others they have other functions such as catalysis of hydratase/dehydratase reactions, maintenance of protein structure, or REGULATION
of activity.