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In time, the level of unintegrated DNA declines, followed by a progressive decline in virus expression. Extensive studies of the proviral landscape in people living with HIV (PLWH) on antiretroviral therapy (ART) show that only about 2% of proviruses are intact; the remainder are characterized as defective and contain numerous deletions of proviral DNA segments and hypermutations. In the current study, we investigated the decline of viral expression in infected T cells in search of mechanisms involved in proviral inactivation.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Results<\/jats:title>\n            <jats:p>We derived clonal lines from Jurkat cells infected with HIV MN and monitored them for viral expression over time in culture. In a subset of clones that displayed a decline in expression, we found provirus containing large deletions and the integration of a retrotranscribed molecule of tRNA<jats:sup>Gly<\/jats:sup> adjacent to the 3\u2019-end of the proviral DNA. We provide evidence linking the proviral deletions to the insertion of a reverse transcribed tRNA<jats:sup>Gly<\/jats:sup> molecule and propose a mechanism for its self-primed reverse transcription.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusions<\/jats:title>\n            <jats:p>Large deletions of proviral DNA have been reported in PLWH on ART and attributed to errors that occurred in the synthesis of the minus strand during the reverse transcription of the viral genome. Our results support an additional mechanism for proviral deletions, mediated by tRNA<jats:sup>Gly<\/jats:sup>, in the inactivation of the provirus.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1186\/s12977-025-00667-0","type":"journal-article","created":{"date-parts":[[2025,7,1]],"date-time":"2025-07-01T13:36:12Z","timestamp":1751376972000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["t-RNA mediates provirus deletion in HIV-infected cells"],"prefix":"10.1186","volume":"22","author":[{"given":"Corrado","family":"Gurgo","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Genoveffa","family":"Franchini","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2025,7,1]]},"reference":[{"key":"667_CR1","first-page":"161","volume-title":"Retroviruses","author":"PO Brown","year":"1997","unstructured":"Brown PO. 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