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In enzymology, a sarsasapogenin 3β-glucosyltransferase () is an enzyme that catalyzes the chemical reaction :UDP-glucose + sarsasapogenin UDP + sarsasapogenin 3-''O''-β-D-glucoside Thus, the two substrates of this enzyme are UDP-glucose and sarsasapogenin (), whereas its two products are UDP and sarsasapogenin 3-''O''-β-D-glucoside.〔.〕 The enzyme was first isolated from the root of the common asparagus (''Asparagus officinalis'').〔 It is specific for substrate sterols with the uncommon 5β-configuration (sarsasapogenin and smilagenin), that is with a ''cis''-linkage between the A and B rings of the steroid nucleus.〔 This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is UDP-glucose:(3β,5β,25''S'')-spirostan-3-ol 3-''O''-β-D-glucosyltransferase. This enzyme is also called uridine diphosphoglucose-sarsasapogenin glucosyltransferase. ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sarsasapogenin 3β-glucosyltransferase」の詳細全文を読む スポンサード リンク
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