Fig. 2: Purification of HSA from Nicotiana benthamiana using Ni-NTA affinity chromatography.

A SDS-PAGE analysis of crude extract and purified HSA, showing a single band for purified HSA at approximately 70 kDa. B Western blot analysis confirmed a band at approximately 70 kDa in both the crude extract and purified HSA, consistent with the SDS-PAGE results. The blot was probed with a 1:5,000 dilution of anti-His antibody. C: crude extract; P: purified HSA.