Acetylxylan esterase

EC 3.1.1.72 acetylxylan esterase Deacetylation of xylans and xylo-oligosaccharides... 

Cybinski, D. H., Layton, I., Lowry, J. B., and Dalrymple, B. P., An acetylxylan esterase and a xylanase expressed from genes cloned from the ruminal fungus Neocallimastix patriciarum act synergistically to degrade acetylated xylans. Appl Microbiol Biotechnol 1999, 52 (2), 221-5. 

McDermid, K. P., Forsberg, C. W., and MacKenzie, C. R., Purification and properties of an acetylxylan esterase from Fibrobacter succinogenes S85. Appl Environ Microbiol 1990, 56 (12), 3805-10. 

Although the specificity of the CBMs binding polysaccharides is the same as the catalytic domain more often than not, there are many examples to the contrary from enzymes hydrolysing the plant cell wall. Thus, an acetylxylan esterase Cellvibrio japonicus ioxm.Qx y P.fluorescens subsp. cellulosa) contains a cellulose binding domain. Moreover the modular structure permits fairly complicated proteins to be built up one chitinase, for example, from a hyperthermophilic archeon, had two GH 18 catalytic domains and two Family 1 and a Family 5 CBMs. °... 

Low amounts of ester LCC structures as well as y-acetylated lignin moieties in the CELs [21] indicate that cellulase preparations should also possess esterase activity [41]. Esterase activity in commercial cellulase preparations is commonly found, since many industrial fungal hosts such as Trichoderma sp. or Aspergillus sp. cosecrete with cellulases a range of esterases, the so-called xylan debranching enzymes , including acetylxylan esterase (AXE) (EC 3.1.1.72), feruloylesterases (EC 3.1.1.73), and p-coumaroylesterases [42]. 

Christakopoulos and Sheldon groups reported feruloyl and acetylxylan esterases enzymes immobilized following the CLEA biocomposites concept. 

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