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Isoelectric focusing in immobilized pH gradients of phosphoglucomutase and esterases from the spiny lobster
Authors:G Espinosa  E Wenisch  H Danner  H Katinger  P G Righetti
Affiliation:Faculty of Biology, University of Habana.
Abstract:
A method is described for detecting polymorphisms of cephalothorax and tail homogenates of 25 puerulus staged Panulirus argus in phosphoglucomutase (PGM) and esterases. Isoelectric focusing in immobilized pH gradients was used. In the pH 6.0-8.0 interval for phosphoglucomutase and in the pH 3.5-5.0 and 4.2-4.9 ranges for esterases, both enzymes appeared as polymorphic band patterns. These could be explained by one locus with 2 alleles for phosphoglucomutase and 3 loci with 2, 3 and 4 alleles for esterases. Esterases exhibit a more extensive polymorphism in immobilized pH gradients than in polyacrylamide gel electrophoresis.
Keywords:
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