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EC 3.1.1.73 Details
EC number
3.1.1.73
Accepted name
feruloyl esterase
Reaction
feruloyl-polysaccharide + H2O = ferulate + polysaccharide
Other name(s)
ferulic acid esterase, hydroxycinnamoyl esterase, hemicellulase accessory enzyme, FAE-III, cinnamoyl ester hydrolase, FAEA, cinnAE, FAE-I, FAE-II
Systematic name
4-hydroxy-3-methoxycinnamoyl-sugar hydrolase
CAS registry number
134712-49-5
Comment
Catalyses the hydrolysis of the 4-hydroxy-3-methoxycinnamoyl (feruloyl) group from an esterified sugar, which is usually arabinose in "natural" substrates. p-Nitrophenol acetate and methyl ferulate are poorer substrates. All microbial ferulate esterases are secreted into the culture medium. They are sometimes called hemicellulase accessory enzymes, since they help xylanases and pectinases to break down plant cell wall hemicellulose.
History
created 2000
EC Tree
3.1.1.9 created 1961, deleted 1972
3.1.1.12 created 1961, deleted 1972
3.1.1.16 created 1961, deleted 1972
3.1.1.18 created 1961, deleted 1982
3.1.1.62 created 1989, deleted 1992
3.1.1.69 created 1992, deleted 2002
3.1.2.8 created 1961, deleted 1978
3.1.2.9 created 1961, deleted 1964
3.1.2.24 created 2000, deleted 2005