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ANTIFREEZE PROTEINS FROM FISH BLOODS. RELATIONSHIP OF THE FUNCTION TO STRUCTURE, SOLVENT, AND FREEZING CONDITIONS.

Author(s) : FEENEY R. E.

Type of article: Article

Summary

ANTIFREEZE PROTEINS THAT FUNCTION NONCOLLIGATIVELY EXIST IN BLOOD SERUMS FROM FISHES OF POLAR OCEANS AND NORTHERN OCEANS. ONE TYPE FOUND IN THE ANTARCTIC AND THE ARCTIC IS A GLYCOPROTEIN MADE UP OF REPEATING UNITS OF A GLYCOPEPTIDE COMPOSED OF THE TRIPEPTIDE ALA-ALA-THR. A SECOND TYPE, A NONGLYCOPROTEIN, EXISTS IN SOME NORTHERN FISH. ALA CONSTITUTES APPROXIMATELY TWO-THIRDS OF THE AMINO ACID CONTENT IN BOTH TYPES OF PROTEINS. EXTENSIVE STUDIES HAVE BEEN CONDUCTED TO CHARACTERIZE THE ACTION OF THESE PROTEINS. THE RESULTS SUGGEST THAT THE MECHANISM FOR THE ANTIFREEZE ACTION IS THE INHIBITION OF ICE CRYSTAL GROWTH AT THE LIQUID-SOLID INTERFACE.

Details

  • Original title: ANTIFREEZE PROTEINS FROM FISH BLOODS. RELATIONSHIP OF THE FUNCTION TO STRUCTURE, SOLVENT, AND FREEZING CONDITIONS.
  • Record ID : 1982-0882
  • Languages: English
  • Source: Lebensm.-Wiss. Technol. - vol. 14 - n. 4
  • Publication date: 1981

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