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Western blots of proteins extracted from the cytoplasms (a, c, and e) and supernatants (b, d, and f) of Jurkat-tat cells, transfected with the WT and mutant HIV-1 proviruses A1 to A3 and A5 to A13, probed with a monoclonal antibody to gp120/160. Mock, nontransfected cells.
