Alpha,alpha-trehalose phosphorylase (configuration-retaining)

In enzymology, an alpha,alpha-trehalose phosphorylase (configuration-retaining) (EC number|2.4.1.231) is an enzyme that catalyzes the chemical reaction

:alpha,alpha-trehalose + phosphate $ightleftharpoons$ alpha-D-glucose + alpha-D-glucose 1-phosphate

Thus, the two substrates of this enzyme are alpha,alpha-trehalose and phosphate, whereas its two products are alpha-D-glucose and alpha-D-glucose 1-phosphate.

This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is alpha,alpha-trehalose:phosphate alpha-D-glucosyltransferase. This enzyme is also called trehalose phosphorylase [ambiguous] .

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