[Interaction of 2Fe-2S-ferredoxins from plants and adrenal cortex with detergents]

The interactions of 2Fe-2S ferredoxins from bovine adrenal cortex, blue-green algae and leaves of three plant species with some positively and negatively charged as well as with uncharged detergents, have been studied. These interactions generally resulted in the destruction of active centers of ferredoxins represented by the 2Fe-2S cluster. The role of oxidants (oxygen and potassium ferricyanide) in cluster destruction by detergents has been established. The opposite sensitivity of plant and animal ferredoxins to anionic and nonionic detergents was revealed.