The malZ gene of Escherichia coli, a member of the maltose regulon, encodes a maltodextrin glucosidase.

Abstract

We have characterized a maltodextrin glucosidase, previously described as a maltose-inducible, cytoplasmic enzyme that cleaves p-nitrophenyl-alpha-maltoside in Escherichia coli. The gene encoding the enzyme activity, referred to as malZ, is located at 9.3 min on the chromosomal map. We cloned the gene in a high copy number vector and purified the enzyme. It… (More)

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