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A new high activity plasma cholinesterase variant.
  1. A Krause,
  2. A B Lane,
  3. T Jenkins
  1. Department of Human Genetics, School of Pathology, South African Institute for Medical Research, Johannesburg.


    A South African Afrikaans speaking family is reported in which a new high activity plasma cholinesterase variant was found to occur in the mother and son. The variant has the same electrophoretic mobility as the "usual' enzyme, but greater heat stability. Its higher specific activity is associated with a normal number of enzyme molecules. The variant may be inherited as a dominant trait, though its locus is uncertain.

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