Figure 4.

Expression of α2-3–linked and α2-6–linked sialic acid in T-syn + / + and T-syn − / − embryos. (A–H) Sections of the indicated tissues were pretreated with or without sialidase and stained with Maackia amurensis hemagglutinin (MAH), which recognizes α2-3–linked sialic acid, or with Sambucus nigra (SNA), which recognizes α2-6–linked sialic acid. Note that MAH binds much less to T-syn −/− embryos than to T-syn +/+ embryos. Pretreatment of the sections with sialidase eliminated binding of MAH and SNA, confirming their specificity. Bars, 50 μm.