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Purification and Properties of Undecyl Acetate Esterase from Pseudomonas cepacia Grown on 2-Tridecanone

By A. C. Shum and A. J. Markovetz


Undecyl acetate esterase has been purified from Pseudomonas cepacia grown on the methyl ketone, 2-tridecanone. The Km for undecyl acetate was 2.3 × 10−2 M. Polyacrylamide gel electrophoresis indicated that two esterase bands were being recovered during purification. These bands were separated by preparative polyacrylamide gel electrophoresis. Molecular weights were estimated to be approximately 34,500 by several methods. Molecular sieve polyacrylamide gel electrophoresis indicated that the two esterases had the same molecular weight but different charge, which is indicative of isoenzymes

Topics: Enzymology
Year: 1974
OAI identifier: oai:pubmedcentral.nih.gov:246835
Provided by: PubMed Central
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