Thermostability of an alkaline protease, AprP, is enhanced by replacements of Ser307 and Ser331 at the cleavage sites

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The thermostability of an alkaline protease, AprP from Pseudomonas sp. KFCC 10818, was improved by replacing Ser307 and Ser331 at the autoproteolytic cleavage sites with various amino acids. Six mutant enzymes were purified and characterized. Two of these had half-lives four and three times longer than the wild-type protease at 55degreesC in the presence of 1 mM CaCl2. Three mutant enzymes had half-lives twice as long as the wild-type under the same condition.
Publisher
KLUWER ACADEMIC PUBL
Issue Date
2002-11
Language
English
Article Type
Article
Keywords

PSEUDOMONAS SP; DISULFIDE BOND; STABILITY; SUBTILISIN; CLONING

Citation

BIOTECHNOLOGY LETTERS, v.24, no.21, pp.1749 - 1755

ISSN
0141-5492
URI
http://hdl.handle.net/10203/79306
Appears in Collection
MSE-Journal Papers(저널논문)
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