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dc.contributor.authorFraser, Keiron
dc.contributor.authorPeck, LS
dc.contributor.authorClark, MS
dc.contributor.authorClarke, A
dc.contributor.authorHill, SL
dc.date.accessioned2022-04-28T12:06:26Z
dc.date.issued2022-03
dc.identifier.issn2054-5703
dc.identifier.issn2054-5703
dc.identifier.otherARTN 211272
dc.identifier.urihttp://hdl.handle.net/10026.1/19090
dc.description.abstract

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.

dc.format.extent211272-
dc.format.mediumElectronic-eCollection
dc.languageen
dc.language.isoeng
dc.publisherThe Royal Society
dc.subjectprotein turnover
dc.subjectslow growth
dc.subjecttemperature limitation
dc.subjectcryobiology
dc.subjectAntarctic
dc.subjectprotein synthesis
dc.titleLife in the freezer: protein metabolism in Antarctic fish
dc.typejournal-article
dc.typeJournal Article
plymouth.author-urlhttps://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000791273300004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008
plymouth.issue3
plymouth.volume9
plymouth.publication-statusPublished
plymouth.journalRoyal Society Open Science
dc.identifier.doi10.1098/rsos.211272
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA07 Earth Systems and Environmental Sciences
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
dc.publisher.placeEngland
dcterms.dateAccepted2022-02-04
dc.rights.embargodate2022-4-29
dc.identifier.eissn2054-5703
rioxxterms.versionofrecord10.1098/rsos.211272
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2022-03
rioxxterms.typeJournal Article/Review


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