The amino acid sequence of cytochrome c' from the purple photosynthetic bacterium Rhodospirillum rubrum S1 has been determined and is consistent with homology to cytochrome c' from the nonphotosynthetic bacterium Alcaligenes sp. NCIB 11015. There is 29% identity in the chosen alignment of these two proteins. R. rubrum cytochrome c' is composed of a single peptide chain of 126 amino acid residu...

The amino acid sequence of cytochrome c’ from the purple photosynthetic bacterium Rhodospirillum rubrum Sl has been determined and is consistent with homology to cytochrome c’ from the nonphotosynthetic bacterium Alcaligenes sp. NCIB 11015. There is 29% identity in the chosen alignment of these two proteins. R. rubrum cytochrome c’ is composed of a single peptide chain of 126 amino acid residue...

The purple photosynthetic bacterium, Rhodospirillum rubrum, grows anaerobically only when illuminated with light of appropriate wave lengths. Extracts prepared from cells grown in this manner catalyze an anaerobic light-dependent phosphorylation of adenosine diphosphate to adenosine triphosphate (1). However, R. rubrum also can be grown heterotrophically in darkness if oxygen is provided (2). U...