Research Article
Extracellular Ribonuclease from Bacillus licheniformis (Balifase), a New Member of the N1/T1 RNase Superfamily
Table 3
The isolation and purification of B. licheniformis RNase.
| Stage of purification | Vol (V), mL | A280, units | Specific activity, units/A280 | Degree of purification | Yield (by activity), % |
| Culture fluid after 24 h of cultivation | 1200 | 8 | 763 | 1 | 100 | After DEAE-cellulose, pH 5.0 | 1200 | 7.8 | 780 | 1.02 | 99.7 | After elution from phosphocellulose in 200 mM sodium phosphate buffer, pH 7.0 | 20 | 0.7 | 225000 | 353 | 75 | After chromatography on UNOS6 column using FPLC system | 4 | 0.45 | 1.5 × 106 | 2353 | 50 |
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