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    Toward Understanding Bacterial Ice Nucleation

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    Author
    Lukas, Max
    Schwidetzky, Ralph
    Eufemio, Rosemary J.
    Bonn, Mischa
    Meister, Konrad
    Keyword
    ice
    freezing
    nucleation
    nonlinear optics
    molecules
    Metadata
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    URI
    http://hdl.handle.net/11122/12668
    Abstract
    Bacterial ice nucleators (INs) are among the most effective ice nucleators known and are relevant for freezing processes in agriculture, the atmosphere, and the biosphere. Their ability to facilitate ice formation is due to specialized ice-nucleating proteins (INPs) anchored to the outer bacterial cell membrane, enabling the crystallization of water at temperatures up to −2 °C. In this Perspective, we highlight the importance of functional aggregation of INPs for the exceptionally high ice nucleation activity of bacterial ice nucleators. We emphasize that the bacterial cell membrane, as well as environmental conditions, is crucial for a precise functional INP aggregation. Interdisciplinary approaches combining high-throughput droplet freezing assays with advanced physicochemical tools and protein biochemistry are needed to link changes in protein structure or protein–water interactions with changes on the functional level.
    Date
    2022-01-27
    Publisher
    American Chemical Society
    Type
    Article
    Peer-Reviewed
    Yes
    Citation
    Lukas, M., Schwidetzky, R., Eufemio, R. J., Bonn, M., & Meister, K. (2022). Toward understanding bacterial ice nucleation. The Journal of Physical Chemistry B.
    Collections
    Meister, Konrad

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