Abstract
SCHOLANDER and colleagues1–3 observed that the blood sera of some polar fishes contain a substance of high molecular weight which lowers the freezing point. The general properties and structures of a family of several glycoproteins with this characteristic have recently been described in Antarctic fishes4–14. These “antifreeze” glycoproteins (AFGP) consist of repeating units of the triglycopeptide Ala-Ala-Thr-o-disaccharide. Three active glycoproteins have been characterized; these differ only in polymer length, with molecular weights ranging from 10,500 to 21,000 g mol−1 as determined by ultracentrifugation, light scattering, or osmotic pressure6,11. According to the freezing point depression, however, the apparent molecular weight is only 20 g mol−1, a value equivalent to >500 times the depression calculated from the molecular weights.
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References
Scholander, P. F., Flagg, W., Walters, V., and Irving, L., Physiol. Zool., 26, 67 (1953).
Scholander, P. F., van Dam, L., Kanwisher, J. W., Hammel, H. T., and Gordon, M. S., J. Cell Comp. Physiol., 49, 5 (1957).
Gordon, M. S., Amdur, B. H., and Scholander, P. F., Biol. Bull., 122, 52 (1962).
De Vries, A. L., and Wohlschlag, D. E., Science, 163, 1073 (1969).
Komatsu, S. K., thesis, Univ. California, Davis (1969).
DeVries, A. L., Komatsu, S. K., and Feeney, R. E., J. Biol. Chem., 245, 2901 (1970).
Komatsu, S. K., DeVries, A. L., and Feeney, R. E., J. Biol. Chem., 245, 2909 (1970).
DeVries, A. L., Vandenheede, J., and Feeney, R. E., J. Biol. Chem., 246, 305 (1971).
Shier, W. T., Lin, Y., and DeVries, A. L., Biochem. Biophys. Acta, 263, 406 (1972).
Vandenheede, J. R., Ahmed, A. I., and Feeney, R. E., J. Biol. Chem., 247, 7885 (1972).
Feeney, R. E., Vandenheede, J., and Osuga, D. T., Naturwissenschaften, 59, 22 (1972).
DeVries, A. L., in Fish Physiology (edit. by Hoar and Randall), 6, 157 (Academic Press, New York, 1969).
Chuba, J. V., Kuhns, W. J., Nigrelli, R. F., Vandenheede, J., Osuga, D. T., and Feeney, R. E., Nature, 242, 342 (1973).
DeVries, A. L., Science, 172, 1152 (1971).
Feeney, R. E., and Allison, R. G., Evolutionary Biochemistry of Proteins (Wiley-Interscience, New York, 1969).
Hargens, A. R., Science, 176, 184 (1972).
Scholander, P. F., and Maggert, J. E., Cryobiology, 8, 371 (1971).
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FEENEY, R., HOFMANN, R. Depression of Freezing Point by Glycoproteins from an Antarctic Fish. Nature 243, 357–359 (1973). https://doi.org/10.1038/243357a0
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DOI: https://doi.org/10.1038/243357a0
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