Marco Moracci, Roberto Nucci, Ferdinando Febbraio, Carlo Vaccaro, Nunzia Vespa, Franco La Cara, Mosè Rossi
Abstract:The gene coding for the beta-glycosidase from the archaeon Sulfolobus solfataricus has been overexpressed in Escherichia coli. The enzyme was purified to homogeneity with a rapid purification procedure employing a thermal precipitation as a crucial step. The final yield was 64% and the purification from the thermal precipitation was 5.4-fold. The expressed enzyme shows the same molecular mass, thermophilicity, thermal stability, and broad substrate specificity, with noticeable exocellobiase (glucan 1,4-beta-D-…
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