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Fig. 3. Immunoblot analysis of neurofilaments from control (WT) and NFHLacZ transgenic (TG) mice treated with
-chymotrypsin. (A) Isolated neurofilaments (10 µg) were treated during 20 minutes with 4 ng of
-chymotrypsin at 30°C, and then analysed by western blotting. (B) Similarly, neurofilaments (50 µg) were digested for 20 minutes at 37°C with
-chymotrypsin (2.5 ng for NFH and NFL, or 10 ng for NFM) and centrifuged for 30 minutes at 100,000 g and 4°C. Supernatants (S) and pellets (P) were separated and analysed by western blot.