Comparative zone electrophoresis of catalase of Staphylococcus species isolated from mammalian skin

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Abstract
Vertical polyacrylamide slab gel electrophoresis was conducted for the catalase enzymes of representative strains of 18 proposed species and subspecies of the genus Staphylococcus. The catalase bands which resulted were predominantly monomorphic within each of the species and differences in catalase mobilities were observed between many of the species. The electrophoretic mobilities of the catalases were supportive to the scheme of classification used. Many strains of certain species demonstrated multiple catalase bands which are suggestive of multimolecular forms of the enzyme. Horizontal starch gel electrophoresis of representative strains of S. capitis produced catalase bands with relative mobilities that were different from those obtained with polyacrylamide electrophoresis, presumably due to a difference in molecular sieving between the gels.

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