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    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jbsc/003/02/0149-0155

    • Keywords

       

      Cobra venom; Naja naja; cardiotoxin; pyrophosphatase

    • Abstract

       

      An inorganic pyrophosphatase has been purified to apparent homogeniety from Indian cobra(Naja naja) venom, with a ten-fold increase in specific activity. The enzyme activity is intrinsic to a protein fraction in the venom which is normally termed cardiotoxin, cobramine, cytotoxin and so on. The enzyme shows a lowKm (70 μI) and high heat stability. The enzyme was active against sodium pyrophosphate; it also hydrolyses a few mononucletides and sugar phosphates at much lower rates. The physiological significance of inorganic pyrophosphatase in venom is discussed.

    • Author Affiliations

       

      K E Achyuthan1 L K Ramachandran1

      1. Department of Biochemistry, Osmania University, Hyderabad - 500 007

    • Dates

       
      Published
      June 1981
      Manuscript received
      12 July 1980
      Manuscript revised
      24 April 1981

  • Journal of Biosciences | News

      Forthcoming Special issue.


    • To trigger further research on plant mitochondria, the Journal of Biosciences is bringing out a special issue titled "Plant Mitochondria: Properties and Interactions with Other Organelles".


      Plant mitochondria are quite distinct and have unique features, such as a cyanide-insensitive alternate pathway. They also interact with chloroplasts to optimize photosynthetic carbon assimilation.


      Submissions are welcome until 30 July 2023. The contributions can be original articles, short communications, reviews, or mini-reviews on any topic related to plant mitochondria.


      Authors can submit their articles online at https://www.editorialmanager.com/jbsc/default2.aspx

      Posted on April 12, 2023
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      Posted on July 25, 2019

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