Please use this identifier to cite or link to this item: http://nopr.niscpr.res.in/handle/123456789/23802
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dc.contributor.authorMane, R R-
dc.contributor.authorBapat, M M-
dc.date.accessioned2013-11-19T08:51:36Z-
dc.date.available2013-11-19T08:51:36Z-
dc.date.issued2001-06-
dc.identifier.issn0975-1009 (Online); 0019-5189 (Print)-
dc.identifier.urihttp://hdl.handle.net/123456789/23802-
dc.description578-583en_US
dc.description.abstractAn alkaline protease was isolated from culture filtrate of B. subtilis NCIM 2713 by ammonium sulphate precipitation and was purified by gel filtration. With casein as a substrate, the proteolytic activity of the purified protease was found to be optimal at pH 8.0 and temperature 70° C. The purified protease had molecular weight 20 kDa. lsoelectric point 5.2 and km 2.5 mg ml-1. The enzyme was stable over the pH range 6.5 - 9.0 at 37° C for 3 hr. During chromatographic separation this protease was found to be susceptible to autolytic degradation in the absence of Ca2+ , Ca2+ was not only required for the enzyme activity but also for the stability of the enzyme above 50° C. About 62 % activity was retained after 60 min at pH 8.0 and 55°C. DFP and PMSF completely inhibited the activity of this enzyme,    while in the presence of EDTA only 33 % activity remained. However, it was not affected either by su101ydryl reagent, or by divalent metal cations, except SDS and Hg2+ . The results indicated that this is a serine protease. en_US
dc.language.isoen_USen_US
dc.publisherNISCAIR-CSIR, Indiaen_US
dc.rights CC Attribution-Noncommercial-No Derivative Works 2.5 Indiaen_US
dc.sourceIJEB Vol.39(06) [June 2001]en_US
dc.titleA study of extracellular alkaline protease from Bacillus subtilis NCIM 2713 en_US
dc.typeArticleen_US
Appears in Collections:IJEB Vol.39(06) [June 2001]

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