Localization and Properties of Cholinephosphate Cytidylyltransferase Activity in Castor Bean Endosperm

  • Anthony J. Kinney
  • Thomas S. MooreJr.


The reaction catalyzed by CTP: cholinephosphate cytidylyltransferase (E.C. has been postulated to be a control reaction in the synthesis of phosphatidylcholine (PtdCho) in animals and some plant tissues (1, 2). A number of studies utilizing animal tissues have indicated that the enzyme is regulated by translocation of a soluble enzyme to the cytosol, where it becomes activated (2). We report here a study of this enzyme in postgermination castor bean endosperm.


Soluble Enzyme Sucrose Density Gradient Centrifugation Phosphatidylcholine Biosynthesis Cytidine Diphosphate Phosphocholine Cytidylyltransferase 
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Copyright information

© Plenum Press, New York 1987

Authors and Affiliations

  • Anthony J. Kinney
    • 1
  • Thomas S. MooreJr.
    • 1
  1. 1.Department of BotanyLouisiana State UniversityBaton RougeUSA

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