It is commonly known that the antiviral activity of the TRIM5α protein, the intracellular retrovirus restriction factor, underlies the resistance of the Old World monkeys to HIV-1. This fact suggests that TRIM5α can potentially be used to cure HIV-1 infection in humans. The present review considers the mechanisms of HIV-1 replication inhibition by the TRIM5a protein and the prospects for using it in gene therapy of HIV infection.
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