EC 2.4.1.126     
Accepted name: hydroxycinnamate 4-β-glucosyltransferase
Reaction: UDP-glucose + trans-4-hydroxycinnamate = UDP + 4-O-β-D-glucosyl-4-hydroxycinnamate
Other name(s): uridine diphosphoglucose-hydroxycinnamate glucosyltransferase; UDP-glucose-hydroxycinnamate glucosyltransferase; hydroxycinnamoyl glucosyltransferase
Systematic name: UDP-glucose:trans-4-hydroxycinnamate 4-O-β-D-glucosyltransferase
Comments: Acts on 4-coumarate, ferulate, caffeate and sinapate, forming a mixture of 4-glucosides and glucose esters (cf. EC 2.4.1.120 sinapate 1-glucosyltransferase).
References:
1.  Fleuriet, A., Macheix, J.J., Suen, R. and Ibrahim, R.K. Partial purifiction and some properties of a hydroxycinnamoyl glucosyltransferase from tomato fruits. Z. Naturforsch. C: Biosci. 35 (1980) 967–972.
[EC 2.4.1.126 created 1984]