The authors have investigated the antibody binding with individual HIV protein by "western" blotting method. The optimal condition for binding was incubation of nitrocellulose strips at 37 degrees C for 2 hrs followed by incubation at 4 degrees C overnight. Differences in the serologic activities of a number of sera in "western" blotting were shown by using two different antigens. It was concluded that mixing of different antigens before electrophoresis may be useful for more effective "western" blotting analysis.
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