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Biochem Cell Biol. 1994 Mar-Apr;72(3-4):152-6.

A low molecular weight peptide from snow mold with epitopic homology to the winter flounder antifreeze protein.

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Department of Molecular Biology and Genetics, University of Guelph, ON, Canada.


Evidence for a small size protein (ca. 3500 kDa) exhibiting epitopic homology to the Atlantic winter flounder antifreeze protein (AFP) is found in the snow molds Coprinus psychromorbidus, Myriosclerotinia borealis, and Typhula incarnata. The protein shows strong cross-reactivity with antisera specific for the flounder AFP. Preliminary studies suggest that the protein is synthesized in response to lowering the culture temperature, and that it is membrane associated and, therefore, may function in an analogous capacity to the fish AFP. Also, the protein is shown to have antifreeze properties as determined by nuclear magnetic resonance microimaging experiments.

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