Table 1.
Stage of Purification | Group | Total Activity, Units | The Protein Amount, mg | Specific Activity, E/mg Protein | Yield, % | Degree of Purification |
---|---|---|---|---|---|---|
Homogenate | 1 (pH 4.0) | 2.25 ± 0.101 | 250 ± 11.5 | 0.009 ± 0.0003 | 100 | 1 |
2 (pH 5.5) | 2.79 ± 0.112 a,b | 233 ± 10.8 a | 0.012 ± 0.0003 a | 100 | 1 | |
3 (pH 9.0) | 1.94 ± 0.096 b | 277 ± 12.3 b | 0.007 ± 0.0002 b | 100 | 1 | |
Chromatography on sephadex G-25 | 1 (pH 4.0) | 1.77 ± 0.082 | 183 ± 9.2 | 0.015 ± 0.0006 | 79 | 1.7 |
2 (pH 5.5) | 2.29 ± 0.111 a,c | 111 ± 5.2 a | 0.018 ± 0.0007 a | 82 | 1.5 | |
3 (pH 9.0) | 1.43 ± 0.061 | 182 ± 8.5 | 0.012 ± 0.0006 | 74 | 1.7 | |
Chromatography on DEAE cellulose | 1 (pH 4.0) | 0.765 ± 0.034 c | 1.77 ± 0.08 c | 0.432 ± 0.0212 c | 34 | 48 |
2 (pH 5.5) | 0.865 ± 0.042 d | 1.57 ± 0.07 | 0.552 ± 0.0271 | 31 | 46 | |
3 (pH 9.0) | 0.357 ± 0.015 d | 1.58 ± 0.07 | 0.357 ± 0.0158 d | 29 | 51 |
* Note: Table discusses statistically significant differences at: a—p < 0.01; b—p < 0.0004; c—p < 0.03; d—p < 0.003.