title: Isolation of photosynthetic catalysts from cyanobacteria.
abstract: Methods are described for the isolation of ferredoxins I and II, cytochrome c-553, cytochrome f, cytochrome c-550 and plastocyanin from large quantities of various cyanobacteria. The amino acid composition of cytochrome c-550 is reported. There is a variation in the relative amounts of these proteins in different batches of cells which may relate to the nutritional status of the organisms.
mesh_terms: D000596:Amino Acids / Q000032:analysis; D002384:Catalysis; D002736:Chloroplasts / Q000032:analysis; D002850:Chromatography, Gel; D002852:Chromatography, Ion Exchange; D000458:Cyanobacteria / Q000032:analysis*; D003574:Cytochrome c Group / Q000032:analysis / Q000302:isolation & purification*; D003580:Cytochromes / Q000302:isolation & purification*; D005288:Ferredoxins / Q000302:isolation & purification*; D007425:Intracellular Membranes / Q000032:analysis; D010788:Photosynthesis; D010940:Plant Proteins / Q000302:isolation & purification*; D010970:Plastocyanin / Q000302:isolation & purification*
chemical_list: D000596:Amino Acids; D003574:Cytochrome c Group; D003580:Cytochromes; D005288:Ferredoxins; D010940:Plant Proteins; D010970:Plastocyanin