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EC 2.4.1.360 Details
EC number
2.4.1.360
Accepted name
2-hydroxyflavanone C-glucosyltransferase
Reaction
UDP-α-D-glucose + a 2′-hydroxy-β-oxodihydrochalcone = UDP + a 3′-(β-D-glucopyranosyl)-2′-hydroxy-β-oxodihydrochalcone
Other name(s)
OsCGT
Systematic name
UDP-α-D-glucose:2′-hydroxy-β-oxodihydrochalcone C6/8-β-D-glucosyltransferase
Comment
The enzyme has been characterized in Oryza sativa (rice), various Citrus spp., Glycine max (soybean), and Fagopyrum esculentum (buckwheat). Flavanone substrates require a 2-hydroxy group. The meta-stable flavanone substrates such as 2-hydroxynaringenin exist in an equilibrium with open forms such as 1-(4-hydroxyphenyl)-3-(2,4,6-trihydroxyphenyl)propane-1,3-dione, which are the actual substrates for the glucosyl-transfer reaction (see EC 1.14.14.162, flavanone 2-hydroxylase). The enzyme can also act on dihydrochalcones. The enzymes from citrus plants can catalyse a second C-glycosylation reaction at position 5.
History
created 2018
EC Tree
2.4.1.3 created 1961, deleted 1972
2.4.1.6 created 1961, deleted 1972
2.4.1.42 created 1972, deleted 1984
2.4.1.51 created 1972, deleted 1984
2.4.1.55 created 1972, deleted 1982
2.4.1.59 created 1972, deleted 1984
2.4.1.61 created 1972, deleted 1984
2.4.1.72 created 1972, deleted 1976
2.4.1.75 created 1976, deleted 2005
2.4.1.76 created 1976, deleted 1984
2.4.1.77 created 1976, deleted 1984
2.4.1.84 created 1976, deleted 1984
2.4.1.89 created 1976, deleted 1984
2.4.1.93 created 1976, deleted 2004
2.4.1.98 created 1980, deleted 1984
2.4.1.107 created 1983, deleted 1984
2.4.1.108 created 1983, deleted 1984
2.4.1.124 created 1984, deleted 2002
2.4.1.151 created 1984, deleted 2002
2.4.1.169 created 1989, deleted 2003
2.4.1.200 created 1992, deleted 2004
2.4.1.204 created 1992, deleted 2003
2.4.1.233 created 2004, deleted 2005