Escherichia coli strains with modified RNase II activity: Isolation and properties

Abstract

In a search for Escherichia coli strains defective in ribonuclease activity, a uracil requiring strain lacking RNase I activity was fed yeast RNA as the sole source of uracil and mutants that failed to utilize yeast RNA as the sole source of uracil were isolated. Among thirty colonies thus isolated and tested three were found to contain a heat labile RNase… (More)
DOI: 10.1007/BF00276046

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