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. 2003 Jan 6;160(1):113–123. doi: 10.1083/jcb.200207113

Figure 5.

Figure 5.

Effect of antibody cross-linking on association of BACE1A-CFP and YFP-swAPP to DRMs. 10 h after adenovirus infection to express BACE1A-CFP or YFP-swAPP, the cells were labeled for 2 h with [35S]methionine and chased for 2 h in the presence of antibody KG77 (anti-FP) or antibody 7523 (anti-BACE1). The cells were subsequently lysed in 20 mM CHAPS/TNE at 4°C. (A) After flotation in an OptiPrep step gradient, BACE1A-CFP and YFP-swAPP were immunoprecipitated with antibody KG77 from the collected fractions. (B) Quantification; antibody-induced patching significantly increased the amount of APP (n = 3) and of BACE1 (n = 4) in the top two fractions (DRM associated). The amount in the top two fractions was correlated to the total amount of protein in all fractions.