EC 2.4.1.209     
Accepted name: cis-p-coumarate glucosyltransferase
Reaction: UDP-glucose + cis-p-coumarate = 4′-O-β-D-glucosyl-cis-p-coumarate + UDP
Systematic name: UDP-glucose:cis-p-coumarate β-D-glucosyltransferase
Comments: cis-Caffeic acid also serves as a glucosyl acceptor with the enzyme from Sphagnum fallax kinggr. The corresponding trans-isomers are not substrates.
References:
1.  Rasmussen, S. and Rudolph, H. Isolation, purification and characterization of UDP-glucose:cis-p-coumaric acid-β-D-glucosyltransferase from Sphagnum fallax. Phytochemistry 46 (1997) 449–453.
[EC 2.4.1.209 created 2000]