Freezing Avoidance of Antarctic Fishes: The Role of a Novel Antifreeze Potentiating Protein and the Antifreeze Glycoproteins
Jin, Yumi
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https://hdl.handle.net/2142/87227
Description
Title
Freezing Avoidance of Antarctic Fishes: The Role of a Novel Antifreeze Potentiating Protein and the Antifreeze Glycoproteins
Author(s)
Jin, Yumi
Issue Date
2003
Doctoral Committee Chair(s)
DeVries, Arthur L.
Department of Study
Molecular and Integrative Physiology
Discipline
Molecular and Integrative Physiology
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Biology, Animal Physiology
Language
eng
Abstract
AFPP is a 15.5 kDa protein with an unbiased amino acid composition. It was found in all the Antarctic notothenioid fishes examined, at different concentrations. It was most abundant in the shallow water fishes swimming in ice-laden water, but was present at concentrations ten fold less in the deep-water fishes where there is no ice. AFPP was not found in the Arctic gadid fishes although some of them swim just below the ice and in freezing leads in the Arctic pack ice.
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