The steady state kinetics of cytochrome c peroxidase from Pseudomonas aeruginosa (PaCCP) has been studied by initial velocity techniques using several cytochromes c (550 and 555 P. aeruginosa; 551 P. fluorescens) and Pseudomonas azurin as electron donors and hydrogen peroxide as electron acceptor. From the initial velocity patterns a sequential mechanism with compulsory substrate-binding order is proposed for PaCCP. A comparative kinetic study of the peroxidatic oxidation of cytochrome c-551 (P. aeruginosa) by yeast cytochrome c peroxidase was made to evaluate the significance of electrostatic interactions in complex formation between the enzyme and substrates.
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Rönnberg et al. (1975) studied this question.
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