Eukaryotic Transport Control: The Turnover Years

  • C. William Christopher

Abstract

The years 1974 to 1979 marked a transition period for Herman Kalckar. While at the Massachusetts General Hospital, he moved out of the Biochemical Research Unit into the Huntington Laboratories and, subsequently, to the Chemistry Department at Boston University. It was during this five-year period of changes in personnel and sites of research activity, a turnover period, that the “Carrier Turnover Model” for the regulation of transport in animal cells was developed. The model was designed to explain how a balance between carrier synthesis, opposed by carrier degradation, is regulated by some, as yet unknown, process of oxidative glucose metabolism. Although the process is not linked to glycolysis, it is known to require an “energized state” of the cell. The energized state is, however, not dependent on the intracellular supply of ATP. Instead, the energized state appears to be crucial to the process of carrier degradation which apparently takes place through the action of lysosomal proteinases.

Keywords

Fluoride Galactose Hydrolase Hexose Uridine 

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References

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Copyright information

© Plenum Press, New York 1984

Authors and Affiliations

  • C. William Christopher
    • 1
  1. 1.The Biological Science Center and Biology DepartmentBoston UniversityBostonUSA

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