
1D SDS-PAGE of ab88358 before and after treatment with glycosidases to remove oligosaccharides. Lane 1: ab88358 Lane 2: ab88358 treated with PNGase F to remove potential N-linked glycans Lane 3: ab88358 treated with a glycosidase cocktail to remove potential N- and O-linked glycans. Drop in MWt after treatment with PNGase F indicates presence of N-linked glycans. Subsequent drop in MWt after treatment with glycosidase cocktail indicates presence of O-linked glycans. Faint bands in lane 2 and lane 3 are glycosidase enzymes.

A sample of ab88358 without carrier protein was reduced and alkylated and focused on a 3-10 IPG strip then run on a 4-20% Tris-HCl 2D gel. Spot train indicates presence of multiple isoforms of ab88358.

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 MWt and pI of the protein.