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Genetic organization of R. ruber (A) and
R. erythropolis (B) (28) cytochrome P-450
systems. Transcriptional activators (▪), cytochromes P-450 (▨),
ferredoxin reductases (░⃞), ferredoxins
(
) and unknown proteins
(▥) are 31, 24, 47, 48, and 40% identical, respectively.
