Figure 2

Cartoon model of the 66.3 kDa protein (3FGR) viewed along the β-sheets (at the top) and from the top (after a turn by 90°) (at the bottom). The 28 kDa and 40 kDa fragment are coloured in orange and blue, respectively. The last four C-terminal residues of the 28 kDa fragment (G245-S248) as well as the two intramolecular disulfide bonds are highlighted in ball and stick mode and coloured in orange and brown, respectively. The five glycans and the asparagine residues, at which they are attached, are shown as thick black lines.