Purified Bacillus licheniformis PWD-1 keratinase
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United States of America Patent
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Dec 15, 1992
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N/A
app pub date -
Oct 1, 1991
filing date -
Mar 31, 1988
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Abstract
A substantially pure keratinaceous material-degrading B. licheniformis PWD-1 enzyme is disclosed. The substantially pure enzyme is characterized by a molecular weight of 33 kiloDaltons, an isoelectric point of 7.25, an optimum pH of 7.5, an optimum temperature of 45.degree.-50.degree. C., and thermal stability at low temperatures.
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