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3.1.1.6: acetylesterase

This is an abbreviated version!
For detailed information about acetylesterase, go to the full flat file.

Word Map on EC 3.1.1.6

Reaction

An acetic ester
+
H2O
=
an alcohol
+
acetate

Synonyms

6-O-deacetylase, ACE, AcE1, acetate ester-hydrolysing esterase, acetic acid esterase, Acetic ester hydrolase, Acetyl esterase, acetyl xylan esterase, acetyl-esterase, acetylesterase CE16, AE, AE206, Aes, Aes1, alpha/beta-acetylesterase, Axe3, BS2, C-esterase, C20orf3, carbohydrate acetylesterase, carbohydrate esterase, CE16, CE16 acetyl esterase, CE16A, CE2, CE2A, CE2B, CE2C, Chloroesterase, Citrus acetylesterase, EST-4, Est1, EST2, Est24, ESTK, GAE, geranyl acetate cleaving esterase, haemagglutinin-esterase, HE, HerE, More, non-specific acetyl esterase, p-nitrophenyl acetate esterase, PAE1, PAE11, PAE2, PAE3, PAE4, PAE5, PAE6, PAE7, PAE8, PAE9, pectin acetylesterase, ragi acetic acid esterase, TM0077, ybaC

ECTree

     3 Hydrolases
         3.1 Acting on ester bonds
             3.1.1 Carboxylic-ester hydrolases
                3.1.1.6 acetylesterase

pH Range

pH Range on EC 3.1.1.6 - acetylesterase

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pH RANGE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
11
-
16% activity, EST1 sample after anion-exchange chromatography, p-nitrophenyl acetate as substrate, 20°C, 4 h
3
-
no activity below
5
-
inactive below, EST1 sample after anion-exchange chromatography, p-nitrophenyl acetate as substrate, 20°C, 4 h
6
-
85% residual activity, alpha-naphthyl acetate as substrate, more active in acetate buffer than phosphate buffer
6.5 - 7
-
optimum activity, alpha-naphthyl acetate as substrate
7
-
no activity above
7 - 10
-
100% activity, EST1 sample after anion-exchange chromatography, p-nitrophenyl acetate as substrate, 20°C, 4 h
7 - 8.5
-
the enzyme retains about 90% and 88% of its maximal activity at pH 7.0 and 8.5, respectively
7 - 9
about 35% activity at pH 7.0, 100% activity at pH 8.0, about 60% activity at pH 9.0, almost no activity below pH 6.0 and above pH 10.0
8
-
65% residual activity, alpha-naphthyl acetate as substrate