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. 2012 Aug 26;65(6):666–672. doi: 10.1007/s00284-012-0208-2

Table 2.

Effect of metal ions on activity of chitinase from Aspergillus niger LOCK 62

Metals (1 mM/l) Relative activity (%)
Crude chitinase Purified chitinase
None 100 100
Mn2+ 42 32
Mg2+ 104 101
Zn2+ 72 62
Ca2+ 98 105
Hg2+ 0 0
Pb2+ 0 0
Cd2+ 44 34