PAQR-2 regulates fatty acid desaturation during cold adaptation in C. elegans.

C. elegans PAQR-2 is homologous to the insulin-sensitizing adiponectin receptors in mammals, and essential for adaptation to growth at 15°C, a low but usually acceptable temperature for this organism. By screening for novel paqr-2 suppressors, we identified mutations in genes involved in phosphatidy...

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主要な著者: Emma Svensk, Marcus Ståhlman, Carl-Henrik Andersson, Maja Johansson, Jan Borén, Marc Pilon
フォーマット: 論文
言語:English
出版事項: Public Library of Science (PLoS) 2013-01-01
シリーズ:PLoS Genetics
オンライン・アクセス:http://europepmc.org/articles/PMC3772066?pdf=render
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author Emma Svensk
Marcus Ståhlman
Carl-Henrik Andersson
Maja Johansson
Jan Borén
Marc Pilon
author_facet Emma Svensk
Marcus Ståhlman
Carl-Henrik Andersson
Maja Johansson
Jan Borén
Marc Pilon
author_sort Emma Svensk
collection DOAJ
description C. elegans PAQR-2 is homologous to the insulin-sensitizing adiponectin receptors in mammals, and essential for adaptation to growth at 15°C, a low but usually acceptable temperature for this organism. By screening for novel paqr-2 suppressors, we identified mutations in genes involved in phosphatidylcholine synthesis (cept-1, pcyt-1 and sams-1) and fatty acid metabolism (ech-7, hacd-1, mdt-15, nhr-49 and sbp-1). We then show genetic evidence that paqr-2, phosphatidylcholines, sbp-1 and Δ9-desaturases form a cold adaptation pathway that regulates the increase in unsaturated fatty acids necessary to retain membrane fluidity at low temperatures. This model is supported by the observations that the paqr-2 suppressors normalize the levels of saturated fatty acids, and that low concentrations of detergents that increase membrane fluidity can rescue the paqr-2 mutant.
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spelling doaj.art-84a40d049fe84d9986ee7066f1567ba22022-12-22T03:15:30ZengPublic Library of Science (PLoS)PLoS Genetics1553-73901553-74042013-01-0199e100380110.1371/journal.pgen.1003801PAQR-2 regulates fatty acid desaturation during cold adaptation in C. elegans.Emma SvenskMarcus StåhlmanCarl-Henrik AnderssonMaja JohanssonJan BorénMarc PilonC. elegans PAQR-2 is homologous to the insulin-sensitizing adiponectin receptors in mammals, and essential for adaptation to growth at 15°C, a low but usually acceptable temperature for this organism. By screening for novel paqr-2 suppressors, we identified mutations in genes involved in phosphatidylcholine synthesis (cept-1, pcyt-1 and sams-1) and fatty acid metabolism (ech-7, hacd-1, mdt-15, nhr-49 and sbp-1). We then show genetic evidence that paqr-2, phosphatidylcholines, sbp-1 and Δ9-desaturases form a cold adaptation pathway that regulates the increase in unsaturated fatty acids necessary to retain membrane fluidity at low temperatures. This model is supported by the observations that the paqr-2 suppressors normalize the levels of saturated fatty acids, and that low concentrations of detergents that increase membrane fluidity can rescue the paqr-2 mutant.http://europepmc.org/articles/PMC3772066?pdf=render
spellingShingle Emma Svensk
Marcus Ståhlman
Carl-Henrik Andersson
Maja Johansson
Jan Borén
Marc Pilon
PAQR-2 regulates fatty acid desaturation during cold adaptation in C. elegans.
PLoS Genetics
title PAQR-2 regulates fatty acid desaturation during cold adaptation in C. elegans.
title_full PAQR-2 regulates fatty acid desaturation during cold adaptation in C. elegans.
title_fullStr PAQR-2 regulates fatty acid desaturation during cold adaptation in C. elegans.
title_full_unstemmed PAQR-2 regulates fatty acid desaturation during cold adaptation in C. elegans.
title_short PAQR-2 regulates fatty acid desaturation during cold adaptation in C. elegans.
title_sort paqr 2 regulates fatty acid desaturation during cold adaptation in c elegans
url http://europepmc.org/articles/PMC3772066?pdf=render
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