[Purification and properties of plastocyanin and ferredoxin from Ceratophyllum demersum L].

A copper-containing protein plastocyanin and iron-containing protein ferredoxin were isolated in electrophoretically homogenous states from Ceratophyllum demersum L. Molecular weights, protein compositions as well as optical and EDP specta of both proteins are presented. The proteins studied showed considerable differences in ultraviolet spectrum and amino acid composition as compared to analogous proteins from surface higher plants and green algae.