title: Ribonuclease II activity in a "presumptive" ribonuclease II-deficient mutant.
abstract: A mutant strain of Escherichia coli previously thought to possess low levels of ribonuclease II activity has normal levels of ribonuclease II after partial purification of this enzyme from crude extracts.
mesh_terms: D002848:Chromatography, DEAE-Cellulose; D004355:Drug Stability; D004926:Escherichia coli / Q000201:enzymology*; D006358:Hot Temperature; D007700:Kinetics; D009154:Mutation; D012260:Ribonucleases / Q000302:isolation & purification*
chemical_list: D012260:Ribonucleases