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Correlation of Intracellular Ca2+-Activated Proteinase Activity and Cholesterol Content in White Sea Mussel (Mytilus edulis) Membranes at Different Water Saltiness

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Abstract

Correlation between changes in activity of intracellular Ca2+-activated proteinases and cholesterol content in mussels in response to changes in habitat saltiness was detected in mollusks from littoral and sublittoral White sea zones. Calpain activity in mussels decreased in low water saltiness and increased in high saltiness in parallel with decrease in cholesterol content, which attests to decreased microviscosity and modification of permeability of biomembranes. A complex pattern of interactions between metabolic routes in mussels under conditions of different habitat saltiness was detected.

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Authors and Affiliations

  1. Institute of Biology, Karelian Research Center, Russian Academy of Sciences, Petrozavodsk, Russia

    E. I. Kyaivyaryainen, Z. A. Nefedova, L. A. Bondareva, N. N. Alekseeva & N. N. Nemova

Authors
  1. E. I. Kyaivyaryainen
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  2. Z. A. Nefedova
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  3. L. A. Bondareva
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  4. N. N. Alekseeva
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  5. N. N. Nemova
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Correspondence to E. I. Kyaivyaryainen.

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Translated from Byulleten' Eksperimental'noi Biologii i Meditsiny, Vol. 140, No. 10, pp. 457–460, October, 2005

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Kyaivyaryainen, E.I., Nefedova, Z.A., Bondareva, L.A. et al. Correlation of Intracellular Ca2+-Activated Proteinase Activity and Cholesterol Content in White Sea Mussel (Mytilus edulis) Membranes at Different Water Saltiness. Bull Exp Biol Med 140, 455–458 (2005). https://doi.org/10.1007/s10517-005-0518-5

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  • DOI: https://doi.org/10.1007/s10517-005-0518-5

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