Figure 3.

SDS-PAGE analysis of purified abrin. M, protein marker; 1, raw extract; 2, purified abrin by the first step; 3, purified abrin by the second step under nonreducing condition; 4, purified abrin by the second step under reducing condition.

Yang et al. Nanoscale Research Letters 2014 9:138   doi:10.1186/1556-276X-9-138
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