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Science 16 December 1960:
Vol. 132. no. 3442, pp. 1835 - 1836
DOI: 10.1126/science.132.3442.1835
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Articles

Ribonuclease of Euglena gracilis

J. Fellig 1 and Christine E. Wiley 1

1 Research Department, Union Carbide Chemicals Company, South Charleston, West Virginia

An enzyme in extracts of Euglena gracilis splits both purine and pyrimidine internucleotide bonds of ribonucleic acid. Its pH optimum is at 4.5; it is very heat-labile and is rather insensitive to inhibition by metal ions or sulfhydryl group reagents. A partial purification of the enzyme is described.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)