SDS-PAGE of fractions from the chromatographic
steps of the purification of the β-primeverosidase from fresh green
tea leaves. SDS-PAGE was performed using 10% (w/v) polyacrylamide slab
gel, and the protein was visualized with silver staining. The migration
of size markers is shown to the left of the gel. Lane M,
Mr marker; lane 1, the buffer extract; lane
2, acetone precipitate; lane 3, 40%
(NH4)2SO4
supernatant; lane 4, Butyl-Toyopearl elute; lane 5,
CM-Toyopearl elute; lane 6, Mono S elute.