Journal
JOURNAL OF VIROLOGY
Volume 88, Issue 13, Pages 7659-7662Publisher
AMER SOC MICROBIOLOGY
DOI: 10.1128/JVI.00967-14
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Funding
- Intramural Research Program of the NIH, NIAID
- Department of Biomedical Sciences, University of Cagliari, Monserrato (Cagliari), Italy
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APOBEC3 proteins are restriction factors that induce G -> A hypermutation in retroviruses during replication as a result of cytidine deamination of minus-strand DNA transcripts. However, the mechanism of APOBEC inhibition of murine leukemia viruses (MuLVs) does not appear to be G -> A hypermutation and is unclear. In this report, the incorporation of mA3 in virions resulted in a loss in virion reverse transcriptase (RT) activity and RT fidelity that correlated with the loss of virion-specific infectivity.
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