| pubmed-article:2982039 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:2982039 | lifeskim:mentions | umls-concept:C0026399 | lld:lifeskim |
| pubmed-article:2982039 | lifeskim:mentions | umls-concept:C0035736 | lld:lifeskim |
| pubmed-article:2982039 | lifeskim:mentions | umls-concept:C0007634 | lld:lifeskim |
| pubmed-article:2982039 | lifeskim:mentions | umls-concept:C0040649 | lld:lifeskim |
| pubmed-article:2982039 | pubmed:issue | 2 | lld:pubmed |
| pubmed-article:2982039 | pubmed:dateCreated | 1985-3-1 | lld:pubmed |
| pubmed-article:2982039 | pubmed:abstractText | We examined the mos-specific intracellular RNA species in 6m2 cells, an NRK cell line nonproductively infected with the ts110 mutant of Moloney murine sarcoma virus. These cells present a normal phenotype at 39 degrees C and a transformed phenotype at 28 or 33 degrees C, expressing two viral proteins, termed P85gag-mos and P58gag, at 28 to 33 degrees C, whereas only P58gag is expressed at 39 degrees C. It has been previously shown that 6m2 cells contain two virus-specific RNA species, a 4.0-kilobase (kb) RNA coding for P58gag and a 3.5-kb RNA coding for P85gag-mos. Using both Northern blot and S1 nuclease analyses, we show here that the 3.5-kb RNA is the predominant viral RNA species in 6m2 cells grown at 28 degrees C, whereas only the 4.0-kb RNA is detected at 39 degrees C. During temperature shift experiments, the 3.5-kb RNA species disappears after a shift from 28 to 39 degrees C and is detected again after a shift back from 39 to 28 degrees C. By Southern blot analysis, we have detected only one ts110 proviral DNA in the 6m2 genome. This observation, as well as previously published heteroduplex and S1 nuclease analyses which showed that the 3.5-kb RNA species lacks about 430 bases found at the gag gene-mos gene junction in the 4.0-kb RNA, suggests that the 3.5-kb RNA is a splicing product of the 4.0-kb RNA. The absence of the 3.5-kb RNA when 6m2 cells are grown at 39 degrees C indicates that the splicing reaction is thermosensitive. The splicing defect of the ts110 Moloney murine sarcoma virus viral RNA in 6m2 cells cannot be complemented by acute Moloney murine leukemia virus superinfection, since no 3.5-kb ts110 RNA was detected in acutely superinfected 6m2 cells maintained at 39 degrees C. The spliced Moloney murine leukemia virus env mRNA, however, is found in acutely infected cells maintained at 39 degrees C, suggesting that the lack of ts110 viral RNA splicing at 39 degrees C is not due to an obvious host defect. In sharp contrast, however, 6m2 cells chronically superinfected with Moloney murine leukemia virus produce a 3.5-kb RNA species at 39 degrees C as well as at 28 degrees C and contain proviral DNAs corresponding to the two viral RNA species.(ABSTRACT TRUNCATED AT 400 WORDS) | lld:pubmed |
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| pubmed-article:2982039 | pubmed:language | eng | lld:pubmed |
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| pubmed-article:2982039 | pubmed:citationSubset | IM | lld:pubmed |
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| pubmed-article:2982039 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:2982039 | pubmed:month | Feb | lld:pubmed |
| pubmed-article:2982039 | pubmed:issn | 0022-538X | lld:pubmed |
| pubmed-article:2982039 | pubmed:author | pubmed-author:ArlinghausR... | lld:pubmed |
| pubmed-article:2982039 | pubmed:author | pubmed-author:MurphyE CECJr | lld:pubmed |
| pubmed-article:2982039 | pubmed:author | pubmed-author:HamelinRR | lld:pubmed |
| pubmed-article:2982039 | pubmed:author | pubmed-author:NasrM GMG | lld:pubmed |
| pubmed-article:2982039 | pubmed:author | pubmed-author:BrizzardB LBL | lld:pubmed |
| pubmed-article:2982039 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:2982039 | pubmed:volume | 53 | lld:pubmed |
| pubmed-article:2982039 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:2982039 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:2982039 | pubmed:pagination | 616-23 | lld:pubmed |
| pubmed-article:2982039 | pubmed:dateRevised | 2009-11-18 | lld:pubmed |
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| pubmed-article:2982039 | pubmed:year | 1985 | lld:pubmed |
| pubmed-article:2982039 | pubmed:articleTitle | Temperature-sensitive viral RNA expression in Moloney murine sarcoma virus ts110-infected cells. | lld:pubmed |
| pubmed-article:2982039 | pubmed:publicationType | Journal Article | lld:pubmed |
| pubmed-article:2982039 | pubmed:publicationType | Research Support, U.S. Gov't, P.H.S. | lld:pubmed |
| pubmed-article:2982039 | pubmed:publicationType | Research Support, Non-U.S. Gov't | lld:pubmed |
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