Transformation of substrate specificity of EcoRl restrictase by glycerol
Autor: | Tikhonenko Ti, Zavizion Ba, Karamov Ev, B. S. Naroditskii |
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Rok vydání: | 1977 |
Předmět: | |
Zdroj: | Bulletin of Experimental Biology and Medicine. 84:973-975 |
ISSN: | 1573-8221 0007-4888 |
DOI: | 10.1007/bf00798520 |
Popis: | In the presence of glycerol, EcoRl restriction endonuclease hydrolyzes DNA into a larger number of fragments than under ordinary conditions. On the addition of glycerol to 50% concentration, this enzyme begins to act by what is called the “EcoRl' type” of restriction, which was producible experimentally only by reducing the ionic strength and increasing the pH of the solution. However, under these extremal conditions, the enzyme is quickly inactivated and does not give reproducible results, especially during the hydrolysis of high-molecular-weight DNA. The conditions found for manifestation of “EcoRl' activity” yield reproductible results, which is essentially equivalent to the discovery of a new “restriction endonuclease”. |
Databáze: | OpenAIRE |
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