ArticleJournal of virology1994
An internal deletion enhances the transcriptional activity of a recombinant retrovirus in hematopoietic cells in vivo.
Article in Journal of virology, 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
1 citing paper in PubMed, 3 citations in OpenAlex.
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Lv-myc is a recombinant retrovirus that spontaneously arose during experiments designed to express the provirus LNAv-myc in the hematopoietic system of bone marrow-reconstituted mice (L. Bonham, K. MacKenzie, S. Wood, P. B. Rowe, and G. Symonds, Oncogene 7:2219-2229, 1992). The recombinant provirus is of interest because it is able to promote long terminal repeat-initiated transcription in hematopoietic cells in vivo, whereas the parental provirus, LNAv-myc, is transcriptionally repressed in the same cells. Here we report that Lv-myc was generated by precise deletion of the neomycin resistance gene (neo) and the human gamma-actin promoter from LNAv-myc. In comparison with LNAv-myc, no sequence alterations in the viral regulatory regions of Lv-myc were detected. Thus, it appears that neo and/or the gamma-actin promoter exerted a cis-acting repressor effect on the long terminal repeat of LNAv-myc in vivo. The origin of Lv-myc was also investigated, and it was shown that Lv-myc was harbored as a productive provirus in a G418-resistant subpopulation of the LNAv-myc producer cell line, psi 2AV. It appears that Lv-myc arose during propagation of the psi 2AV cell line. Repeated sequence detected at the sites of the deletion suggest that Lv-myc was generated by a template misalignment during reverse transcription of LNAv-myc.
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Registered trials
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