rdf:type |
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lifeskim:mentions |
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pubmed:issue |
5925
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pubmed:dateCreated |
2009-4-17
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pubmed:abstractText |
Oxygen deprivation is rapidly deleterious for most organisms. However, Caenorhabditis elegans has developed the ability to survive anoxia for at least 48 hours. Mutations in the DAF-2/DAF-16 insulin-like signaling pathway promote such survival. We describe a pathway involving the HYL-2 ceramide synthase that acts independently of DAF-2. Loss of the ceramide synthase gene hyl-2 results in increased sensitivity of C. elegans to anoxia. C. elegans has two ceramide synthases, hyl-1 and hyl-2, that participate in ceramide biogenesis and affect its ability to survive anoxic conditions. In contrast to hyl-2(lf) mutants, hyl-1(lf) mutants are more resistant to anoxia than normal animals. HYL-1 and HYL-2 have complementary specificities for fatty acyl chains. These data indicate that specific ceramides produced by HYL-2 confer resistance to anoxia.
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pubmed:commentsCorrections |
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Caenorhabditis elegans Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Ceramides,
http://linkedlifedata.com/resource/pubmed/chemical/DAF-2 protein, C elegans,
http://linkedlifedata.com/resource/pubmed/chemical/HYL-2 ceramide synthase, C elegans,
http://linkedlifedata.com/resource/pubmed/chemical/Oxidoreductases,
http://linkedlifedata.com/resource/pubmed/chemical/Oxygen,
http://linkedlifedata.com/resource/pubmed/chemical/Receptor, Insulin,
http://linkedlifedata.com/resource/pubmed/chemical/Sphingomyelins,
http://linkedlifedata.com/resource/pubmed/chemical/dihydroceramide desaturase
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
1095-9203
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pubmed:author |
|
pubmed:issnType |
Electronic
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pubmed:day |
17
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pubmed:volume |
324
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
381-4
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pubmed:dateRevised |
2009-11-19
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pubmed:meshHeading |
pubmed-meshheading:19372430-Animals,
pubmed-meshheading:19372430-Apoptosis,
pubmed-meshheading:19372430-Caenorhabditis elegans,
pubmed-meshheading:19372430-Caenorhabditis elegans Proteins,
pubmed-meshheading:19372430-Cell Hypoxia,
pubmed-meshheading:19372430-Ceramides,
pubmed-meshheading:19372430-Gene Deletion,
pubmed-meshheading:19372430-Genes, Helminth,
pubmed-meshheading:19372430-Mutation,
pubmed-meshheading:19372430-Oxidoreductases,
pubmed-meshheading:19372430-Oxygen,
pubmed-meshheading:19372430-Receptor, Insulin,
pubmed-meshheading:19372430-Saccharomyces cerevisiae,
pubmed-meshheading:19372430-Sphingomyelins,
pubmed-meshheading:19372430-Substrate Specificity,
pubmed-meshheading:19372430-Transformation, Genetic,
pubmed-meshheading:19372430-Transgenes
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pubmed:year |
2009
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pubmed:articleTitle |
Protection of C. elegans from anoxia by HYL-2 ceramide synthase.
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pubmed:affiliation |
Department of Cell Biology, University of Geneva, CH-1211 Geneva 4, Switzerland.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't,
Research Support, N.I.H., Extramural
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