Figure 1: ALL recognizes purified CD4+ T cells. (a) Freshly purified CD4+ T cells were stained with CyChrome-labeled streptavidin alone (thick line) after incubation with biotin-labeled ALL (thin line). The bar denotes percentage of purified ALL +CD4+ T cells. (b) GalNAc inhibited Amaranthus leucocarpus lectin (ALL) binding sites for CD4+T cells. Gray lines denote the staining of cells treated only with CyChrome-streptavidin; thin line indicates the florescence level of ALL + cells; thick line denotes fluorescence of ALL + cells when they were treated with GalNAc.