α-Glucose-1-phosphate formation by a novel trehalose phosphorylase from<i>Flammulina velutipes</i>

Abstract

A novel type of trehalose phosphorylase was found in a basidiomycete. Flammulina velutipes. The enzyme catalyzes both the reversible phosphorolysis of trehalose to form α-glucose 1-phosphate and glucose and also the synthesis of trehalose. Comparison of the specific activity of trehalose phosphorylase with that of trehalase suggested that the function of the former enzyme was more important in the fruit-bodies of this fungus.