volume 66, issue 8, P5092-5095 1992
DOI: 10.1128/jvi.66.8.5092-5095.1992
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J E Murphy, S P Goff

Abstract: The integration of retroviral DNA proceeds through two steps: trimming of the termini to expose new 3' OH ends, and the transfer of those ends to the phosphates of target DNA. We have examined the ability of the Moloney murine leukemia virus integrase protein (IN) to trim the termini of the preintegrative DNA of mutant viruses with alterations in the U3 inverted repeat. The mutant terminus of one replication-defective viral DNA, containing a 7-bp deletion in the U3 inverted repeat, was not trimmed to produce t…

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