“…6; Table 2). This is also the case for cytochrome c oxidases from PS3 (Nicholls and Sone, 1984;Sone and Yanagita, 1982;Sone and Kosako, 1986), Thermus thermophilus , and B. subtilis (De Vrij and Konings, 1987). Different behaviour v^as observed in the Paracoccus denitrificans enzyme (Nalecz et ai, 1985) and the eukaryotic oxidase (NaJ'ecz et ai, 1983), in which a monomeric or dimeric state has been related to monophasic or biphasic kinetic behaviour, respectively.…”