[Mechanism of heavy metal ions on RNase activity from bovine pancreas].

This paper studied mechanism of Ce3+, Cd2+, Pb2+ on RNase activity from bovine pancreas. The results showed that the activity of RNase was enhanced under the treatment by Ce3+, Cd2+, Pb2+ at lower concentration (10-60 or 10-30 mumol.L-1), but was inhibited by Ce3+, Cd2+, Pb2+ at higher concentration (40 or 70 mumol.