Figure 2From: High-level expression and purification of soluble recombinant FGF21 protein by SUMO fusion in Escherichia coliSynthesis of SUMO-FGF21 by PCR. The strategy for synthesizing the fusion fragment is described in Materials and Methods. The molecular weight of the PCR fragment containing SUMO-FGF21 is shown in Lane 1, 2 and 3. It is 864 bp in length.Back to article page