RP-HPLC separation of the hydrogen fluoride deglycosylated AGP protein backbones (A) and the products of selective acid hydrolysis of the protein backbone of AGPNa1 (B) from N. alata styles. The shaded area in A, containing the AGPNa1 protein backbone, was collected and subjected to HCl hydrolysis, and after separation, fractions H1, H2, and H3, were collected for additional analyses (Table 1; Figs. 3 and 4).