| pubmed-article:19197349 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:19197349 | lifeskim:mentions | umls-concept:C0003451 | lld:lifeskim |
| pubmed-article:19197349 | lifeskim:mentions | umls-concept:C0521026 | lld:lifeskim |
| pubmed-article:19197349 | lifeskim:mentions | umls-concept:C0084378 | lld:lifeskim |
| pubmed-article:19197349 | lifeskim:mentions | umls-concept:C1099354 | lld:lifeskim |
| pubmed-article:19197349 | lifeskim:mentions | umls-concept:C1136031 | lld:lifeskim |
| pubmed-article:19197349 | lifeskim:mentions | umls-concept:C0220781 | lld:lifeskim |
| pubmed-article:19197349 | lifeskim:mentions | umls-concept:C0005495 | lld:lifeskim |
| pubmed-article:19197349 | lifeskim:mentions | umls-concept:C0162610 | lld:lifeskim |
| pubmed-article:19197349 | lifeskim:mentions | umls-concept:C0086597 | lld:lifeskim |
| pubmed-article:19197349 | pubmed:issue | 2 | lld:pubmed |
| pubmed-article:19197349 | pubmed:dateCreated | 2009-2-6 | lld:pubmed |
| pubmed-article:19197349 | pubmed:abstractText | Dicer ribonucleases of plants and invertebrate animals including Caenorhabditis elegans recognize and process a viral RNA trigger into virus-derived small interfering RNAs (siRNAs) to guide specific viral immunity by Argonaute-dependent RNA interference (RNAi). C. elegans also encodes three Dicer-related helicase (drh) genes closely related to the RIG-I-like RNA helicase receptors which initiate broad-spectrum innate immunity against RNA viruses in mammals. Here we developed a transgenic C. elegans strain that expressed intense green fluorescence from a chromosomally integrated flock house virus replicon only after knockdown or knockout of a gene required for antiviral RNAi. Use of the reporter nematode strain in a feeding RNAi screen identified drh-1 as an essential component of the antiviral RNAi pathway. However, RNAi induced by either exogenous dsRNA or the viral replicon was enhanced in drh-2 mutant nematodes, whereas exogenous RNAi was essentially unaltered in drh-1 mutant nematodes, indicating that exogenous and antiviral RNAi pathways are genetically distinct. Genetic epistatic analysis shows that drh-1 acts downstream of virus sensing and viral siRNA biogenesis to mediate specific antiviral RNAi. Notably, we found that two members of the substantially expanded subfamily of Argonautes specific to C. elegans control parallel antiviral RNAi pathways. These findings demonstrate both conserved and unique strategies of C. elegans in antiviral defense. | lld:pubmed |
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| pubmed-article:19197349 | pubmed:language | eng | lld:pubmed |
| pubmed-article:19197349 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:19197349 | pubmed:citationSubset | IM | lld:pubmed |
| pubmed-article:19197349 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
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| pubmed-article:19197349 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:19197349 | pubmed:month | Feb | lld:pubmed |
| pubmed-article:19197349 | pubmed:issn | 1553-7374 | lld:pubmed |
| pubmed-article:19197349 | pubmed:author | pubmed-author:LuRuiR | lld:pubmed |
| pubmed-article:19197349 | pubmed:author | pubmed-author:YigitErbayE | lld:pubmed |
| pubmed-article:19197349 | pubmed:author | pubmed-author:DingShou-WeiS... | lld:pubmed |
| pubmed-article:19197349 | pubmed:author | pubmed-author:LiWan-XiangWX | lld:pubmed |
| pubmed-article:19197349 | pubmed:issnType | Electronic | lld:pubmed |
| pubmed-article:19197349 | pubmed:volume | 5 | lld:pubmed |
| pubmed-article:19197349 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:19197349 | pubmed:authorsComplete | Y | lld:pubmed |
