Tab. 1: Summary of available data about antifreeze peptides of polar fish
In the blood of Antarctic notothenioid and Arctic gadiform fishes, freezing is inhibited by antifreeze glycopeptide macromolecules (AFGP). These antifreeze molecules are built up of repeating tripeptide units (Ala-Ala-Thr)n, to which the disaccharide fl-D-galactosyl-(1->3)a-N-acetyl-D-galactosami...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.764416 2023-05-15T13:55:14+02:00 Tab. 1: Summary of available data about antifreeze peptides of polar fish Wöhrmann, Andreas P A 2011-08-23 text/tab-separated-values, 761 data points https://doi.pangaea.de/10.1594/PANGAEA.764416 https://doi.org/10.1594/PANGAEA.764416 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.764416 https://doi.org/10.1594/PANGAEA.764416 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Wöhrmann, Andreas P A (1997): Gefrierschutzsubstanzen bei Fischen der Polarmeere und ihre Bedeutung für Evolution und Ökologie. Polarforschung, 65(1), 27-40, hdl:10013/epic.29739.d001 Area/locality Family Mode of life Occurrence Percentage Reference/source Species Temperature water maximum minimum Thermal hysteresis Type Dataset 2011 ftpangaea https://doi.org/10.1594/PANGAEA.764416 2023-01-20T08:52:37Z In the blood of Antarctic notothenioid and Arctic gadiform fishes, freezing is inhibited by antifreeze glycopeptide macromolecules (AFGP). These antifreeze molecules are built up of repeating tripeptide units (Ala-Ala-Thr)n, to which the disaccharide fl-D-galactosyl-(1->3)a-N-acetyl-D-galactosamine is linked through the hydroxyl oxygen of the threonyl residue. Species of Liparididae, Zoarcidae, Cottidae and Pleuronectidae synthezise only unglycosylated antifreeze peptides (AFP). It could be demonstrated for the Antarctic silverfish Pleuragramma antarcticum that the synthesis of AFGP is not constitutive but rather regulated by water temperature. Moreover a novel glycopeptid was isolated and characterised from P. antarcticum, the Pleuragramma-antifreeze glycopeptid (PAGP). The level of antifreeze concentration was dependent on the ambient water temperature, the depth of distribution, the life cycle and the evolution of the species. Surprisingly, detectable AFGPs in perciform fish of the Antarctic and gadiform fish of the Arctic and Antarctic could illustrate, that before the continental drift occurred a precursor glycopeptid existed, and that the existence of freezing resistance in some species reflects the past glaciation. The wide distribution and high heterogeneity of AFPs point to the assumption that these peptides are results of cold shock stress responses. Dataset Antarc* Antarctic Antarctic silverfish Arctic Polarforschung PANGAEA - Data Publisher for Earth & Environmental Science Antarctic Arctic The Antarctic |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Area/locality Family Mode of life Occurrence Percentage Reference/source Species Temperature water maximum minimum Thermal hysteresis Type |
spellingShingle |
Area/locality Family Mode of life Occurrence Percentage Reference/source Species Temperature water maximum minimum Thermal hysteresis Type Wöhrmann, Andreas P A Tab. 1: Summary of available data about antifreeze peptides of polar fish |
topic_facet |
Area/locality Family Mode of life Occurrence Percentage Reference/source Species Temperature water maximum minimum Thermal hysteresis Type |
description |
In the blood of Antarctic notothenioid and Arctic gadiform fishes, freezing is inhibited by antifreeze glycopeptide macromolecules (AFGP). These antifreeze molecules are built up of repeating tripeptide units (Ala-Ala-Thr)n, to which the disaccharide fl-D-galactosyl-(1->3)a-N-acetyl-D-galactosamine is linked through the hydroxyl oxygen of the threonyl residue. Species of Liparididae, Zoarcidae, Cottidae and Pleuronectidae synthezise only unglycosylated antifreeze peptides (AFP). It could be demonstrated for the Antarctic silverfish Pleuragramma antarcticum that the synthesis of AFGP is not constitutive but rather regulated by water temperature. Moreover a novel glycopeptid was isolated and characterised from P. antarcticum, the Pleuragramma-antifreeze glycopeptid (PAGP). The level of antifreeze concentration was dependent on the ambient water temperature, the depth of distribution, the life cycle and the evolution of the species. Surprisingly, detectable AFGPs in perciform fish of the Antarctic and gadiform fish of the Arctic and Antarctic could illustrate, that before the continental drift occurred a precursor glycopeptid existed, and that the existence of freezing resistance in some species reflects the past glaciation. The wide distribution and high heterogeneity of AFPs point to the assumption that these peptides are results of cold shock stress responses. |
format |
Dataset |
author |
Wöhrmann, Andreas P A |
author_facet |
Wöhrmann, Andreas P A |
author_sort |
Wöhrmann, Andreas P A |
title |
Tab. 1: Summary of available data about antifreeze peptides of polar fish |
title_short |
Tab. 1: Summary of available data about antifreeze peptides of polar fish |
title_full |
Tab. 1: Summary of available data about antifreeze peptides of polar fish |
title_fullStr |
Tab. 1: Summary of available data about antifreeze peptides of polar fish |
title_full_unstemmed |
Tab. 1: Summary of available data about antifreeze peptides of polar fish |
title_sort |
tab. 1: summary of available data about antifreeze peptides of polar fish |
publisher |
PANGAEA |
publishDate |
2011 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.764416 https://doi.org/10.1594/PANGAEA.764416 |
geographic |
Antarctic Arctic The Antarctic |
geographic_facet |
Antarctic Arctic The Antarctic |
genre |
Antarc* Antarctic Antarctic silverfish Arctic Polarforschung |
genre_facet |
Antarc* Antarctic Antarctic silverfish Arctic Polarforschung |
op_source |
Supplement to: Wöhrmann, Andreas P A (1997): Gefrierschutzsubstanzen bei Fischen der Polarmeere und ihre Bedeutung für Evolution und Ökologie. Polarforschung, 65(1), 27-40, hdl:10013/epic.29739.d001 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.764416 https://doi.org/10.1594/PANGAEA.764416 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.764416 |
_version_ |
1766261549915176960 |