Life in the freezer: protein metabolism in Antarctic fish
Whole-animal, in vivo protein metabolism rates have been reported in temperate and tropical, but not Antarctic fish. Growth in Antarctic species is generally slower than lower latitude species. Protein metabolism data for Antarctic invertebrates show low rates of protein synthesis and unusually high...
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Online Access: | https://doi.org/10.1098/rsos.211272 https://doaj.org/article/0f4b185df1d64fac865904baeda2a5a7 |
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ftdoajarticles:oai:doaj.org/article:0f4b185df1d64fac865904baeda2a5a7 2023-05-15T13:54:34+02:00 Life in the freezer: protein metabolism in Antarctic fish Keiron P. P. Fraser Lloyd S. Peck Melody S. Clark Andrew Clarke Simeon L. Hill 2022-03-01T00:00:00Z https://doi.org/10.1098/rsos.211272 https://doaj.org/article/0f4b185df1d64fac865904baeda2a5a7 EN eng The Royal Society https://royalsocietypublishing.org/doi/10.1098/rsos.211272 https://doaj.org/toc/2054-5703 doi:10.1098/rsos.211272 2054-5703 https://doaj.org/article/0f4b185df1d64fac865904baeda2a5a7 Royal Society Open Science, Vol 9, Iss 3 (2022) protein turnover slow growth temperature limitation cryobiology Antarctic protein synthesis Science Q article 2022 ftdoajarticles https://doi.org/10.1098/rsos.211272 2022-12-31T15:33:00Z Whole-animal, in vivo protein metabolism rates have been reported in temperate and tropical, but not Antarctic fish. Growth in Antarctic species is generally slower than lower latitude species. Protein metabolism data for Antarctic invertebrates show low rates of protein synthesis and unusually high rates of protein degradation. Additionally, in Antarctic fish, increasing evidence suggests a lower frequency of successful folding of nascent proteins and reduced protein stability. This study reports the first whole-animal protein metabolism data for an Antarctic fish. Groups of Antarctic, Harpagifer antarcticus, and temperate, Lipophrys pholis, fish were acclimatized to a range of overlapping water temperatures and food consumption, whole-animal growth and protein metabolism measured. The rates of protein synthesis and growth in Antarctic, but not temperate fish, were relatively insensitive to temperature and were significantly lower in H. antarcticus at 3°C than in L. pholis. Protein degradation was independent of temperature in H. antarcticus and not significantly different to L. pholis at 3°C, while protein synthesis retention efficiency was significantly higher in L. pholis than H. antarcticus at 3°C. These results suggest Antarctic fish degrade a significantly larger proportion of synthesized protein than temperate fish, with fundamental energetic implications for growth at low temperatures. Article in Journal/Newspaper Antarc* Antarctic antarcticus Directory of Open Access Journals: DOAJ Articles Antarctic Royal Society Open Science 9 3 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
protein turnover slow growth temperature limitation cryobiology Antarctic protein synthesis Science Q |
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protein turnover slow growth temperature limitation cryobiology Antarctic protein synthesis Science Q Keiron P. P. Fraser Lloyd S. Peck Melody S. Clark Andrew Clarke Simeon L. Hill Life in the freezer: protein metabolism in Antarctic fish |
topic_facet |
protein turnover slow growth temperature limitation cryobiology Antarctic protein synthesis Science Q |
description |
Whole-animal, in vivo protein metabolism rates have been reported in temperate and tropical, but not Antarctic fish. Growth in Antarctic species is generally slower than lower latitude species. Protein metabolism data for Antarctic invertebrates show low rates of protein synthesis and unusually high rates of protein degradation. Additionally, in Antarctic fish, increasing evidence suggests a lower frequency of successful folding of nascent proteins and reduced protein stability. This study reports the first whole-animal protein metabolism data for an Antarctic fish. Groups of Antarctic, Harpagifer antarcticus, and temperate, Lipophrys pholis, fish were acclimatized to a range of overlapping water temperatures and food consumption, whole-animal growth and protein metabolism measured. The rates of protein synthesis and growth in Antarctic, but not temperate fish, were relatively insensitive to temperature and were significantly lower in H. antarcticus at 3°C than in L. pholis. Protein degradation was independent of temperature in H. antarcticus and not significantly different to L. pholis at 3°C, while protein synthesis retention efficiency was significantly higher in L. pholis than H. antarcticus at 3°C. These results suggest Antarctic fish degrade a significantly larger proportion of synthesized protein than temperate fish, with fundamental energetic implications for growth at low temperatures. |
format |
Article in Journal/Newspaper |
author |
Keiron P. P. Fraser Lloyd S. Peck Melody S. Clark Andrew Clarke Simeon L. Hill |
author_facet |
Keiron P. P. Fraser Lloyd S. Peck Melody S. Clark Andrew Clarke Simeon L. Hill |
author_sort |
Keiron P. P. Fraser |
title |
Life in the freezer: protein metabolism in Antarctic fish |
title_short |
Life in the freezer: protein metabolism in Antarctic fish |
title_full |
Life in the freezer: protein metabolism in Antarctic fish |
title_fullStr |
Life in the freezer: protein metabolism in Antarctic fish |
title_full_unstemmed |
Life in the freezer: protein metabolism in Antarctic fish |
title_sort |
life in the freezer: protein metabolism in antarctic fish |
publisher |
The Royal Society |
publishDate |
2022 |
url |
https://doi.org/10.1098/rsos.211272 https://doaj.org/article/0f4b185df1d64fac865904baeda2a5a7 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic antarcticus |
genre_facet |
Antarc* Antarctic antarcticus |
op_source |
Royal Society Open Science, Vol 9, Iss 3 (2022) |
op_relation |
https://royalsocietypublishing.org/doi/10.1098/rsos.211272 https://doaj.org/toc/2054-5703 doi:10.1098/rsos.211272 2054-5703 https://doaj.org/article/0f4b185df1d64fac865904baeda2a5a7 |
op_doi |
https://doi.org/10.1098/rsos.211272 |
container_title |
Royal Society Open Science |
container_volume |
9 |
container_issue |
3 |
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1766260564228571136 |