IUBMB Enzyme Nomenclature

EC 2.4.1.192

Accepted name: nuatigenin 3β-glucosyltransferase

Reaction: UDP-glucose + (20S,22S,25S)-22,25-epoxyfurost-5-ene-3β,26-diol = UDP + (20S,22S,25S)-22,25-epoxyfurost-5-ene-3β,26-diol 3-O-β-D-glucoside

Other name(s): uridine diphosphoglucose-nuatigenin glucosyltransferase

Systematic name: UDP-glucose:(20S,22S,25S)-22,25-epoxyfurost-5-ene-3β,26-diol 3-O-β-D-glucosyltransferase

Comments: Some other sapogenins can act as glucosyl acceptors. Involved in the biosynthesis of plant saponins. Not identical with EC 2.4.1.173 (sterol 3β-glucosyltransferase) or EC 2.4.1.193 (sarsapogenin 3β-glucosyltransferase).

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 108891-57-2

References:

1. Kalinowska, M. and Wojciechowski, Z.A. Enzymatic-synthesis of nuatigenin 3-β-D-glucoside in oat (Avena sativa) leaves. Phytochemistry 25 (1986) 2525-2529.

2. Kalinowska, M. and Wojciechowski, Z.A. Subcellular-localization of UDPG-nuatigenin glucosyltransferase in oat leaves. Phytochemistry 26 (1987) 353-357.

[EC 2.4.1.192 created 1992]


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