The positive control plasmid in the myTXTL Antibody/DS kit expresses the Gaussia Luciferase Dura protein which has 5 disulfide bonds. It is visible on an SDS-PAGE gel without purification when compared to a negative control reaction. Its activity can also be assayed using the NanoLight GLuc GLOW assay (NanoLight Technology; cat no. 320-50) and quantified using the GLuc standard sold separately (NanoLight Technology; cat no. 321-100).

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