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  • Title: Simple and fast purification of Escherichia coli adenylate kinase.
    Author: Bârzu O, Michelson S.
    Journal: FEBS Lett; 1983 Mar 21; 153(2):280-4. PubMed ID: 6311616.
    Abstract:
    Adenylate kinase from E. coli (strains CR341 and CR341 T28, a temperature-sensitive mutant) was purified by a two-step chromatographic procedure. The enzyme from crude extracts of both mutant and parent strain was bound to blue-Sepharose at pH 7.5, thereafter specifically eluted with 0.05 mM P1,P5-di(adenosine-5')pentaphosphate. A second chromatography on Sephadex G-100 yielded pure enzyme. E. coli adenylate kinase was strongly inhibited by P1,P5-di(adenosine-5')pentaphosphate (Ki 0.6 microM for adenylate kinase of strain CR341 and 2.1 microM in the case of mutant enzyme). After denaturation in 6 M guanidinium hydrochloride both mutant and parent adenylate kinase returned rapidly to the native, active state by dilution of guanidinium hydrochloride.
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