Abstract
MOST species of the Rhodospirillaceae1, the purple nonsulphur photosynthetic bacteria, produce large quantities of cytochrome c2 (ref. 2), a protein which is similar in sequence to mitochondrial cytochrome c3. Many species also produce the high-spin haem protein cytochrome c′ (ref 2). Cytochromes c′ have been identified in Rhodopseudomonas gelatinosa and in Rhodospirillum tenue, but in these organisms the predominant low-spin cytochromes c do not have properties similar to those found for cytochromes c2 (ref. 2). We have now determined the amino acid sequences of the cytochromes c′ and of the predominant low-spin cytochromes c from the two organisms (Fig. 1).
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AMBLER, R., MEYER, T. & KAMEN, M. Anomalies in amino acid sequences of small cytochromes c and cytochromes c′ from two species of purple photosynthetic bacteria. Nature 278, 661–662 (1979). https://doi.org/10.1038/278661a0
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DOI: https://doi.org/10.1038/278661a0
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