Abstract
An improved method for purifying ribonuclease T1 from Aspergillus oryzae is described. The method uses gradient elution from DEAE-cellulose and sulfopropyl-Sephadex columns followed by gel filtration on Sephadex G-50 to give almost 100 mg (50% yield) of ribonuclease T1 from 100 g of starting material in less than 5 days.
Publication types
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Research Support, Non-U.S. Gov't
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Aspergillus oryzae / enzymology
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Chromatography, DEAE-Cellulose
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Chromatography, Gel
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Electrophoresis, Polyacrylamide Gel
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Endoribonucleases / isolation & purification*
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Ribonuclease T1 / isolation & purification*
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Spectrophotometry
Substances
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Endoribonucleases
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Ribonuclease T1