SGD Paper 
Cooper JM, et al. (1991) Preparation and kinetic studies of immobilised yeast cytochrome c peroxidase. Biotechnol Appl Biochem 14(1):93-103
Abstract: Yeast cytochrome c peroxidase (CcP) was purified from baker's yeast and immobilised onto a nylon membrane. The kinetics of the soluble and immobilised forms of the enzyme were investigated for the catalysed oxidation of potassium ferrocyanide in the presence of H2O2 and m-chloroperoxybenzoic acid. The pH dependence of the two forms of the enzyme differed. Although both the soluble and the immobilised enzymes showed optimal activity at pH 6.2, a different kinetic behaviour was demonstrated. Both forms of the enzyme showed similar activity toward H2O2, although when m-chloroperoxybenzoic acid was replaced as the electron acceptor, the immobilised form of the enzyme had a reduced turnover number and an increased Km. The activation energy of immobilised CcP was greater in the presence of both H2O2 [16.6 kJ mol-1] and m-chloroperoxybenzoic acid [37.9 kJ mol-1] than for soluble CcP [11.4 and 23.4 kJ mol-1, respectively]. The activities of both soluble and immobilised CcP were greatly reduced above 45 degrees C, although at higher temperatures the immobilised enzyme retained a relatively greater percentage of its maximum activity.
| Status: Published | Type: Journal Article | PubMed ID: 1654930 |
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| Topics | Genes linked to topics |
|---|---|
| CCP1 | |
| Additional Literature |  |
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| Substrates/Ligands/Cofactors | |
