Mouse monoclonal antibodies recognizing the activation domains of HIV-1 rev transactivator
1993
Abstract The rev protein of human immunodeficiency virus type 1 (HIV-1), a phosphoprotein of 20 kDa apparent molecular weight, is essential to target the mRNA for virion polypeptides into the cytoplasm. So far, at least four necessary functional domains have been assigned to the HIV-1 rev protein: (1) one for RNA binding; (2) a second for nuclear/nucleolar localization that may be indistinguishable from the RNA binding motif; (3) two domains for multimerization; and (4) a putative activation domains (AD) that is suppressed in trans by dominant-negative mutant rev protein. We report three IgG 1 κ mouse monoclonal antibodies (mabs) that were independently raised against rev protein expressed in Escherichia coli . Epitopes are mapped by immunoprecipitation and Western blot screening with 40 different rev mutant peptides. Surprisingly, monoclonal antibodies from all three hybridomas recognized the activation domains of HIV-1 rev.
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