Structure and Function of Chloroplast-Type Ferredoxins

Abstract

Ferredoxin is a general name given to a group of proteins containing equal amounts of non-heme iron and inorganic sulfur with low oxidation-reduction potentials and characteristic EPR signals. They are biologically active as electron carriers in diverse systems as reviewed in many occasions (Buchanan and Arnon, 1972; Hall et al., 1974; Lovenberg, 1973; Orme-Johnson, 1973; Matsubara, 1972). The amino acid sequences are exemplified by those of Clostridium pasteurianum ferredoxin (Tanaka et al., 1966), spinach ferredoxin (Matsubara et al., 1967) and adrenodoxin (Tanaka et al., 1973).