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Protein interaction with ice.

C L Hew1, D S Yang

  • 1Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada.

European Journal of Biochemistry
|January 15, 1992
PubMed
Summary
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Organisms use antifreeze and ice nucleation proteins to prevent freezing damage. Antifreeze proteins stop ice crystal growth, while ice nucleation proteins initiate freezing, with potential industrial applications.

Area of Science:

  • Biochemistry
  • Cryobiology
  • Molecular Biology

Background:

  • Organisms face freezing injury from extracellular ice formation.
  • Novel protein mechanisms have evolved to mitigate freezing damage.
  • Understanding these proteins is crucial for cryoprotection strategies.

Purpose of the Study:

  • To review current knowledge on ice-interacting proteins.
  • To elucidate the structure and function of antifreeze and ice nucleation proteins.
  • To discuss potential industrial applications of these proteins.

Main Methods:

  • Literature review of antifreeze proteins (AFPs).
  • Literature review of ice nucleation proteins (INPs).
  • Analysis of protein structures and modes of action.

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  • Discussion of reported and potential applications.

    • Main Results:

    • Antifreeze proteins (AFPs) inhibit ice crystal formation and modify ice growth.
    • Ice nucleation proteins (INPs) provide templates that promote ice nucleation.
    • Both protein types play distinct roles in freezing tolerance.

    Conclusions:

    • AFPs and INPs represent key strategies in biological freeze tolerance.
    • Further research into their structure-function relationships is warranted.
    • These proteins hold significant potential for diverse industrial applications, including food preservation and cryopreservation.