Article,

DETECTION AND COMPARISON OF STRAINS WITH SELECTIVE L-HYDANTOIN CLEAVING ACTIVITY USING POLYCLONAL ANTIBODIES

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BIOTECHNOLOGY TECHNIQUES, 7 (5): 361-366 (May 1993)
DOI: {10.1007/BF00152542}

Abstract

Polyclonal antibodies were produced against the highly purified enzymes L-hydantoinase, hydantoin-racemase and L-N-carbamoylamino acid amidohydrolase of Arthrobacter aurescens DSM 3747. Using these antibodies as screening tools, a colony transfer procedure allowed the rapid detection of highly active strains. Furthermore, common Western-blot analysis enabled the direct estimation of internal enzyme concentrations, protein turnover, efficiency of different inducers and a molecular comparison of enzymes derived from different sources. Using this method it is demonstrated that of several tested microorganisms, two Arthrobacter strains showed improved production abilities.

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