| pubmed-article:9209286 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:9209286 | lifeskim:mentions | umls-concept:C0019704 | lld:lifeskim |
| pubmed-article:9209286 | lifeskim:mentions | umls-concept:C0035820 | lld:lifeskim |
| pubmed-article:9209286 | lifeskim:mentions | umls-concept:C0012920 | lld:lifeskim |
| pubmed-article:9209286 | lifeskim:mentions | umls-concept:C0598312 | lld:lifeskim |
| pubmed-article:9209286 | pubmed:dateCreated | 1997-8-7 | lld:pubmed |
| pubmed-article:9209286 | pubmed:abstractText | The mechanisms involved in the restriction of the cellular tropism of HIV-1 to cells of primate origin remain to be clearly defined. However, a number of studies have shown that this is determined not only at the level of the cellular receptor(s) or virus entry, but at a number of additional and later stages in virus replication. We have recently reported that the reverse transcription of HIV-1 RNA is markedly enhanced by the association of the gag encoded nucleocapsid p15 protein and cellular topoisomerase 1. In the present study we have now investigated if the recruitment of cellular topoisomerase I during virus replication is important in determining the cellular tropism of HIV-1. Employing a stable murine cell line, L929, expressing both human CD4 and topoisomerase I, it could be demonstrated that effective proviral DNA synthesis occurred following infection. In contrast in cells expressing only human CD4 proviral DNA synthesis was not detected. In addition we have co-expressed fusin, a protein known to act as an accessory factor as the virus entry stage in infection of T cell tropic HIV-1, to support viral entry completely. However no progeny virus could be detected after HIV-1 infection. These results suggest that reverse transcription in vivo is critically dependent on the presence of cellular topoisomerase I, and support the view that involvement of this enzyme is in HIV-1 replication. Moreover the findings suggest that other factors which remained to be identified, are involved in restricting HIV-1 replication in non-primate cells. | lld:pubmed |
| pubmed-article:9209286 | pubmed:language | eng | lld:pubmed |
| pubmed-article:9209286 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:9209286 | pubmed:citationSubset | IM | lld:pubmed |
| pubmed-article:9209286 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
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| pubmed-article:9209286 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:9209286 | pubmed:month | Apr | lld:pubmed |
| pubmed-article:9209286 | pubmed:issn | 0887-6924 | lld:pubmed |
| pubmed-article:9209286 | pubmed:author | pubmed-author:MatsudaMM | lld:pubmed |
| pubmed-article:9209286 | pubmed:author | pubmed-author:TakahashiHH | lld:pubmed |
| pubmed-article:9209286 | pubmed:author | pubmed-author:KurataTT | lld:pubmed |
| pubmed-article:9209286 | pubmed:author | pubmed-author:NagashimaKK | lld:pubmed |
| pubmed-article:9209286 | pubmed:author | pubmed-author:HallW WWW | lld:pubmed |
| pubmed-article:9209286 | pubmed:author | pubmed-author:TatsumiMM | lld:pubmed |
| pubmed-article:9209286 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:9209286 | pubmed:volume | 11 Suppl 3 | lld:pubmed |
| pubmed-article:9209286 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:9209286 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:9209286 | pubmed:pagination | 26-8 | lld:pubmed |
| pubmed-article:9209286 | pubmed:dateRevised | 2004-11-17 | lld:pubmed |
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| pubmed-article:9209286 | pubmed:year | 1997 | lld:pubmed |
| pubmed-article:9209286 | pubmed:articleTitle | The role of topoisomerase I in HIV-1 replication. | lld:pubmed |
| pubmed-article:9209286 | pubmed:affiliation | National Institute of Health, Tokyo. | lld:pubmed |
| pubmed-article:9209286 | pubmed:publicationType | Journal Article | lld:pubmed |
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