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. 1995 Sep;69(9):5878–5882. doi: 10.1128/jvi.69.9.5878-5882.1995

Modification of retroviral RNA by double-stranded RNA adenosine deaminase.

A M Hajjar 1, M L Linial 1
PMCID: PMC189466  PMID: 7543593

Abstract

In this report, we describe a recombinant provirus generated during in vitro passage that contains a short region of adenosine-to-guanosine hypermutation. The hypermutated region is restricted to complementary sequences present in the recombinant provirus. We propose that a duplex was formed in the recombinant RNA prior to reverse transcription. This duplex was a substrate for double-stranded RNA adenosine deaminase, an activity found in all cells examined that deaminates A in double-stranded RNA, converting it to inosine, which is further converted to a guanosine by reverse transcription. It appears that cis viral sequences facilitated the A-->G transitions.

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Selected References

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