Novel alkaline protease
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United States of America Patent
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Apr 8, 1986
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N/A
app pub date -
Sep 28, 1983
filing date -
Sep 28, 1982
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Abstract
A novel protease is described. The enzyme has the following characteristics: molecular weight: 30,000 (a gel filtration method using Sephadex G-75); isoelectric point, 5.3; pH reactivity: the optimum pH for its esterase activity is at pH 8.5 and the optimum pH for its amidase activity is at pH 9.0 respectively; substrate reactivity: it selectively and specifically hydrolyzes the ester bond and the amide bond derived from the carboxyl group of L-lysine; inhibitor: it is inhibited by diisopropyl phosphofluoride, tosyl-L-lysine chloro-methyl ketone and phenylmethylsulfonyl chloride. The protease is preferably produced by a microorganism belonging to the genus Achromobacter.
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