SDS/PAGE of purified peritrophin 95. (a) Silver-stained SDS/PAGE of peritrophin 95 (reduced). Lanes: 1, standards; 2, peritrophin 95 (2 μg). (b) Biotinylated lectin blot of purified peritrophin 95 (5 μg, lanes 2 and 3). Lanes: 1, standards; 2, biotinylated wheat germ lectin; 3, biotinylated wheat germ lectin after incubation of the filter with 0.3 M GlcNAc.