| Purification stage | Activity | |
| Total activity, U | Specific activity, U/mg protein | |
| Cytosol | 344 | 5.0 |
| Ammonium sulfate, 50% saturation | 268 | 8.4 |
| Butyl-Toyopearl | 261 | 10.4 |
| DEAE-Toyopearl 650 M | 177 | 63.0 |
| Heparin-agarose | 150 | 294.0 |