Table I.

Purification of engineered plastid TK from maize

Procedure Total Activity Total Protein Specific Activity Purification Yield
μmol min-1 mg μmol min-1 mg-1 -fold %
Crude extract 438 73 6.0 1 100
Ni-chelating agarose 388 38 10.2 1.7 89
Superdex 200 380 15 25.3 4.2 87