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Purification and characterization of mono-and diacylglycerol lipase isolated from Penicillium camembertii U-150

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Summary

A novel enzyme hydrolysing mono- and diacylglycerol was found in the culture filtrate of an isolated fungus, Penicillium camembertii. The enzyme was separated into two forms (A- and B-enzyme) with almost the same molecular weight (37,000–39,000), amino acid composition and identical N-terminal amino acid sequence. B-Enzyme, a major component, was purified approximately 210-fold with an activity yield of 2.6%. The B-enzyme was specific to mono- and diacylglycerols and hydrolysed long-chain monoacylglycerols most efficiently. Triacylglycerols were completely inert as substrates for the enzyme. The B-enzyme preferred to attack α-position to β-position of monoacylglycerol, but showed no stereospecificity on mono- and diacylglycerol. Both Fe3+ and Hg2+ inhibited B-enzyme activity significantly.

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Yamaguchi, S., Mase, T. Purification and characterization of mono-and diacylglycerol lipase isolated from Penicillium camembertii U-150. Appl Microbiol Biotechnol 34, 720–725 (1991). https://doi.org/10.1007/BF00169340

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  • DOI: https://doi.org/10.1007/BF00169340

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