Table 1. Purification of PEPC from 240 g of –Pi Arabidopsis suspension cells.
Step | Volume (ml) | Activity (units) | Protein (mg) | Specific activity (units·mg−1) | Purification (fold) | Yield (%) |
---|---|---|---|---|---|---|
Clarified extract | 375 | 120 | 6750 | 0.034 | 1.0 | 100 |
(NH4)2SO4 fractionation | 126 | 74.3 | 3260 | 0.023 | 0.7 | 62 |
butyl-Sepharose | 5.0* | 34.7 | 200 | 0.17 | 5.1 | 29 |
DEAE-Fractogel | 1.2* | 46.3 | 17.0 | 2.7 | 80 | 39 |
Superdex-200 FPLC | 5.5 | 40.0 | 2.8 | 14.5 | 450 | 33 |
Mono Q FPLC | 0.7* | 28.0 | 1.3 | 22.3 | 660 | 23 |
*Concentrated pooled fractions.