Research Article
A Novel Laccase with Potent Antiproliferative and HIV-1 Reverse Transcriptase Inhibitory Activities from Mycelia of Mushroom Coprinus comatus
Table 4
Effect of metal ions and EDTA on C. comatus laccase activity.
| Metal ions | Residual activity (% of control) | 1.25 mM | 2.5 mM | 5 mM | 10 mM |
| Al3+ | 89.1 | 88.5 | 85.4 | 84.3 | Ca2+ | 86.0 | 83.8 | 80.6 | 69.7 | Co2+ | 100 | 100 | 100.9 | 89.9 | Cu2+ | 98.0 | 100 | 110.8 | 110.4 | Fe2+ | 34.2 | 28.1 | 22.1 | 10.7 | Hg2+ | 82.3 | 71.2 | 61.8 | 45.5 | K+ | 98.0 | 106.4 | 97.8 | 91.0 | Li+ | 85.3 | 86.8 | 87.4 | 83.0 | Mg2+ | 99.7 | 100 | 86.8 | 80.9 | Mn2+ | 94.1 | 91.1 | 85.8 | 70.0 | Zn2+ | 100 | 98.9 | 90.0 | 88.0 | EDTA | 98.9 | 100 | 98.0 | 97.5 |
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Laccase activity in the absence of metal ions was regarded as 100%.
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