Literature summary extracted from
Hakulinen, N.; Tenkanen, M.; Rouvinen, J.
Three-dimensional structure of the catalytic core of acetylxylan esterase from Trichoderma reesei: insights into the deacetylation mechanism (2000), J. Struct. Biol., 132, 180-190.
Crystallization (Commentary)
EC Number |
Crystallization (Comment) |
Organism |
---|
3.1.1.72 |
purified catalytic core of the enzyme at 10 mg/ml, hanging drop vapour diffusion method, room temperature, protein solution: sodium acetate, pH 5.0, reservoir solution: potassium/sodium tartrate 1.1 M, TES buffer 0.1 M, pH 8.2, in the ratio 2:1:1 with a Trixton X-100 solution, few weeks, X-ray diffraction structure determination and analysis at 1.9 A, structure model |
Trichoderma reesei |
Organism
EC Number |
Organism |
UniProt |
Comment |
Textmining |
---|
3.1.1.72 |
Trichoderma reesei |
Q99034 |
- |
- |
Reaction
EC Number |
Reaction |
Comment |
Organism |
Reaction ID |
---|
3.1.1.72 |
acetylxylan + 3 H2O = 3 acetic acid + xylan |
catalyses the hydrolysis of acetyl groups from polymeric xylan, acetylated xylose, acetylated glucose, alpha-naphthyl acetate, p-nitrophenyl acetate but not from triacetylglycerol. Does not act on acetylated mannan or pectin, reaction mechanism, enzyme is a serine esterase containing an oxyanion hole and a catalytic triad build of Ser90, His187, and Asp175, substrate binding model |
Trichoderma reesei |
|
Substrates and Products (Substrate)
EC Number |
Substrates |
Comment Substrates |
Organism |
Products |
Comment (Products) |
Rev. |
Reac. |
---|
3.1.1.72 |
acetylated xylan + H2O |
catalytic mechanism, substrate with mono- and double acetylated residues, the enzyme cannot remove acetyl groups located close to large side groups such as 4-O-methylglucuronic acid |
Trichoderma reesei |
xylan + acetate |
- |
? |
|