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  • Title: [Functional role of parvalbumins in regulating Ca2+ in the contraction--relaxation cycle of vertebrate skeletal muscles].
    Author: Burshteĭn EA, Burkhanov SA, Permiakov EA.
    Journal: Biofizika; 1977; 22(5):946-8. PubMed ID: 20987.
    Abstract:
    On the basis of parvalbumin property to change Ca2+-binding constant within the pH-region from approxim-tely 7 to approximately 8 a hypothesis that parvalbumins are pH-regulated Ca2+-depot in muscles has been stated. The addition of parvalbumin to native actomysin complex at pH approximately 7 in the presence of ATP and Ca2+ results in partial inhibition of its superprecipitation. The change of pH up to approximately 8 leads to the restoration of actomyosin superprecipitation.
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