J. Bacteriol., 01 1996, 301-305, Vol 178, No. 1
Copyright © 1996, American Society for Microbiology

Cloning and overexpression in Escherichia coli of the genes encoding NAD-dependent alcohol dehydrogenase from two Sulfolobus species

R Cannio, G Fiorentino, P Carpinelli, M Rossi and S Bartolucci
Dipartimento di Chimica Organica e Biologica, Universita degli Studi di Napoli Federico II, Italy.

The gene adh encoding a NAD-dependent alcohol dehydrogenase from the novel strain RC3 of Sulfolobus sp. was cloned and sequenced. Both the adh gene from Sulfolobus sp. strain RC3 and the alcohol dehydrogenase gene from Sulfolobus solfataricus (DSM 1617) were expressed at a high level in Escherichia coli, and the recombinant enzymes were purified, characterized, and compared. Only a few amino acid replacements were responsible for the different kinetic and physicochemical features investigated.

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