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Information on EC 3.1.1.72 - acetylxylan esterase

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EC Tree
     3 Hydrolases
         3.1 Acting on ester bonds
             3.1.1 Carboxylic-ester hydrolases
                3.1.1.72 acetylxylan esterase
IUBMB Comments
Catalyses the hydrolysis of acetyl groups from polymeric xylan, acetylated xylose, acetylated glucose, alpha-napthyl acetate, p-nitrophenyl acetate but not from triacetylglycerol. Does not act on acetylated mannan or pectin.
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This record set is specific for:
UNIPROT: Q54413
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Word Map
The expected taxonomic range for this enzyme is: Bacteria, Eukaryota
Reaction Schemes
Synonyms
xylanase, chloroacetate esterase, acetyl xylan esterase, acetyl esterase, xyn10b, acetylxylan esterase, axe ii, axe i, ca esterase, xyns20e, more
SYNONYM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
Acetic ester hydrolase
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Acetyl esterase
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Acetylglucomannan esterase
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Acetylnaphthylesterase
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Acetyte esterase
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C-esterase
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Chloroacetate esterase
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Chloroesterase
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Citrus acetylesterase
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Esterase, acetyl
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Esterase, C-
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Heroin esterase
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N-Acetylphosphinothricin deacetylase
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Naphthal AS-D chloroacetate deacetylase
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REACTION TYPE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
hydrolysis of carboxylic ester
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SYSTEMATIC NAME
IUBMB Comments
acetylxylan esterase
Catalyses the hydrolysis of acetyl groups from polymeric xylan, acetylated xylose, acetylated glucose, alpha-napthyl acetate, p-nitrophenyl acetate but not from triacetylglycerol. Does not act on acetylated mannan or pectin.
CAS REGISTRY NUMBER
COMMENTARY hide
188959-24-2
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9000-82-2
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SUBSTRATE
PRODUCT                       
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
acetylated chitin + H2O
acetate + chitin
show the reaction diagram
enzymatic deacetylation of chitinous substrates by AxeA is influenced by both substrate accessibility and mode of enzyme action. Barely acts on solid pure chitin whatever its form: native alpha-chitin and whiskers or native beta-chitin. But when chemically treated in strong alkali, chitin is partially deacetylated. The longer the alkali treatment, the more efficient the deacetylation of alkali-treated chitins
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?
ORGANISM
COMMENTARY hide
LITERATURE
UNIPROT
SEQUENCE DB
SOURCE
precursor
UniProt
Manually annotated by BRENDA team
UNIPROT
ENTRY NAME
ORGANISM
NO. OF AA
NO. OF TRANSM. HELICES
MOLECULAR WEIGHT[Da]
SOURCE
SEQUENCE
LOCALIZATION PREDICTION?
Q54413_STRLI
335
0
34155
TrEMBL
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REF.
AUTHORS
TITLE
JOURNAL
VOL.
PAGES
YEAR
ORGANISM (UNIPROT)
PUBMED ID
SOURCE
Morley, K.L.; Chauve, G.; Kazlauskas, R.; Dupont, C.; Shareck, F.; Marchessault, R.H.
Acetyl xylan esterase-catalyzed deacetylation of chitin and chitosan
Carbohydr. Polym.
63
310-315
2006
Streptomyces lividans (Q54413)
Manually annotated by BRENDA team