Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Effects of metal ions on the activity of the partially purified protease of B. subtilis and E. indicum.
| Metal ions (10 mM) | Relative residual activity (%) of partially purified protease from |
|
|---|---|---|
| B. subtilis | E. indicum | |
| None (control)a | 100 | 100 |
| K+ | 123 | 105 |
| Mn2+ | 100 | 95 |
| Fe3+ | 43.2 | 57 |
| Mg2+ | 120 | 132.4 |
| Hg+ | 30 | 15.5 |
| Zn2+ | 25 | 18 |
| Na+ | 96 | 85 |
| Ca2+ | 125 | 112 |
| Co2+ | 59 | 65 |
The activity of protease without treatment with any metal ion (control) was considered as 100%.
