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Fig. 5. Basal cells were labelled with FITC-conjugated antibodies to the {alpha}2-, {alpha}3- and {alpha}6-integrin subunits and analysed by flow cytometry. (A) Analysis of {alpha}2-integrin expression. Bold solid line, unselected basal cells; solid line, cells that adhered to type I collagen within 5 minutes. (B) Analysis of {alpha}3-integrin expression. Bold solid line, unselected basal cells; solid line, cells that adhered to type I collagen within 5 minutes. (C) Analysis of {alpha}6-integrin expression. Bold solid line, unselected basal cells; solid line, cells that adhered to type I collagen within 5 minutes.