Reaction: UDP-glucose + (25S)-5β-spirostan-3β-ol = UDP + (25S)-5β-spirostan-3β-ol 3-O-β-D-glucoside
Other name(s): uridine diphosphoglucose-sarsapogenin glucosyltransferase
Systematic name: UDP-glucose:(25S)-5β-spirostan-3β-ol 3-O-β-D-glucosyltransferase
Comments: Specific to 5β-spirostanols. Involved in the biosynthesis of plant saponins. Not identical with EC 2.4.1.173 (sterol 3β-glucosyltransferase) or EC 2.4.1.192 (nuatigenin 3β-glucosyltransferase).
Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 117698-14-3
References:
1. Paczkowski, C. and Wojciechowski, Z.A. The occurrence of UDPG-dependent glucosyltransferase specific for sarsasapogenin in Asparagus officinalis. Phytochemistry 27 (1988) 2743-2747.