On simple and mixed alkyl phosphates
نویسندگان
چکیده
منابع مشابه
Alkaline phosphatase revisited: hydrolysis of alkyl phosphates.
Escherichia coli alkaline phosphatase (AP) is the prototypical two metal ion catalyst with two divalent zinc ions bound approximately 4 A apart in the active site. Studies spanning half a century have elucidated many structural and mechanistic features of this enzyme, rendering it an attractive model for investigating the potent catalytic power of bimetallic centers. Unfortunately, fundamental ...
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Trimethyl phosphate, dimethyl and diethyl sulfate and methyl and ethyl methanesulfonate all give high yields of alkylation on purines and pyrimidines in the presence of tetrabutylammonium fluoride. Trimethyl phosphate produces near quantitative yields of diesters of nucleic acids but gives virtually no triester formation. The alkyl sulfates produce very high yields of triesters of nucleic acids...
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Two types of microemulsion reaction systems: simple and mixed reverse micelles have been investigated as potential bioreactors for a transglycosylation reaction catalyzed by three microbial b-galactosidases: fungal Aspergillus oryzae, yeast Kluyveromyces marxianus and bacterial Escherichia coli b-galactosidase. Several issues such as: the effect of the degree of hydration on the total enzyme ac...
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Rubinstein J (1995) Cohtmn Flotation: Processes, Designs and Practices. New York: Gordon and Breach. Schubert Hand Bischofberger C (1979) On the optimization of hydrodynamics in flotation processes. In: Laskowski J (ed.) Proceedings of the 13th International Mineral Process Congress, pp. 1261-1287. Warsaw: Elsevier. Wills BA (1992) Introduction to Mineral Processing Technology, 5th edn, pp. 558...
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ژورنال
عنوان ژورنال: American Journal of Science
سال: 1915
ISSN: 0002-9599
DOI: 10.2475/ajs.s4-40.240.643