Reaction: UDP-glucose + cis-zeatin = UDP + O-β-D-glucosyl-cis-zeatin
Glossary:
zeatin
Systematic name: UDP-glucose:cis-zeatin O-β-D-glucosyltransferase
Comments: The enzyme from maize can use cis-zeatin and UDPglucose as substrates, but not cis-ribosylzeatin, trans-zeatin or trans-ribosylzeatin. Unlike EC 2.4.1.203, trans-zeatin O-β-D-glucosyltransferase, UDP-D-xylose cannot act as a donor.
Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 123644-76-8
References:
1. Martin, R.C., Mok, M.C., Habben, J.E. and Mok, D.W.S. A maize cytokinin gene encoding an O-glucosyltransferase specific to cis-zeatin. Proc. Natl. Acad. Sci. USA 98 (2001) 5922-5926. [PMID: 11331778]