|Superclasses:||Reactions Classified By Conversion Type → Simple Reactions → Chemical Reactions|
|Reactions Classified By Substrate → Small-Molecule Reactions|
EC Number: 184.108.40.206
Enzymes and Genes:
|Aspergillus niger :||feruloyl esterase A
|Ruminiclostridium thermocellum ATCC 27405 :||endo-1,4-β-xylanase XynZ
endo-1,4-β-xylanase XynY : xynY
The reaction direction shown, that is, A + B ↔ C + D versus C + D ↔ A + B, is in accordance with the direction in which it was curated.
Most BioCyc compounds have been protonated to a reference pH value of 7.3, and some reactions have been computationally balanced for hydrogen by adding free protons. Please see the PGDB Concepts Guide for more information.
Mass balance status: Balanced.
Enzyme Commission Primary Name: feruloyl esterase
Enzyme Commission Synonyms: ferulic acid esterase, hydroxycinnamoyl esterase, hemicellulase accessory enzymes, FAE-III, cinnamoyl ester hydrolase, FAEA, cinnAE, FAE-I, FAE-II
Standard Gibbs Free Energy (ΔrG'° in kcal/mol): 74.00185 [Latendresse13]
Enzyme Commission Summary:
Catalyzes 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.
Unification Links: KEGG:R07292
deVries97: de Vries RP, Michelsen B, Poulsen CH, Kroon PA, van den Heuvel RH, Faulds CB, Williamson G, van den Hombergh JP, Visser J (1997). "The faeA genes from Aspergillus niger and Aspergillus tubingensis encode ferulic acid esterases involved in degradation of complex cell wall polysaccharides." Appl Environ Microbiol 63(12);4638-44. PMID: 9406381
Faulds91: Faulds CB, Williamson G (1991). "The purification and characterization of 4-hydroxy-3-methoxycinnamic (ferulic) acid esterase from Streptomyces olivochromogenes." J Gen Microbiol 137(10);2339-45. PMID: 1663152
Kroon96: Kroon PA, Faulds CB, Williamson G (1996). "Purification and characterization of a novel esterase induced by growth of Aspergillus niger on sugar-beet pulp." Biotechnol Appl Biochem 23 ( Pt 3);255-62. PMID: 8679110
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