Densitometry of protein isoforms visualised by 2-DE. The densitometry scan demonstrates the purified human cell expressed protein exists in multiple isoforms, which differ according to their level of post-translational modification. The triangle indicates the theoretical MW and pI of the protein.
1D SDS-PAGE of ab83761 before and after treatment with glycosidases to remove oligosaccharides. Lane 1: ab83761 Lane 2: ab83761 treated with PNGase F to remove potential N-linked glycans. Lane 3: ab83761 treated with a glycosidase cocktail to remove potential N- and O-linked glycans. 10 µg protein loaded per lane. Drop in MW after treatment with PNGase F indicates the presence of N-linked glycans. Faint bands in lane 3 and lane 4 are glycosidase enzymes.