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3.2.1.25: beta-mannosidase

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

Word Map on EC 3.2.1.25

Reaction

Manbeta1-4GlcNAcbeta(1-4)GlcNAcbeta-Asn
+
H2O
=
GlcNAc-(1-4)-beta-GlcNAc-Asn
+
beta-D-mannopyranose

Synonyms

beta-D-mannosidase, beta-MAN, beta-mannosidase, beta-mannosidase 2A, beta-mannoside mannohydrolase, betaMANNOS1, BglB, CmMan5, CmMan5a, exo beta-mannanase, exo-beta-D-mannanase, GH2 beta-mannosidase, GM-1, GM-2, HvBII, Man2A, ManB, mannanase, mannase, mannosidase 5A, mannosidase, beta-, OT-1, PH0501, TM1624

ECTree

     3 Hydrolases
         3.2 Glycosylases
             3.2.1 Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
                3.2.1.25 beta-mannosidase

KM Value

KM Value on EC 3.2.1.25 - beta-mannosidase

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KM VALUE [mM]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
0.0028 - 0.089
2,4-dinitrophenyl-beta-D-mannopyranoside
0.13 - 0.91
4-methylumbelliferyl beta-D-mannopyranoside
0.94 - 1.29
4-nitrophenyl beta-D-fucopyranoside
7.3 - 36.1
4-nitrophenyl beta-D-galactopyranoside
0.3 - 30.4
4-nitrophenyl beta-D-glucopyranoside
0.4 - 3.2
4-nitrophenyl beta-D-mannopyranoside
0.5
4-nitrophenyl-beta-D-glucopyranose
pH 4.0, 30°C
0.25 - 1.6
4-nitrophenyl-beta-D-mannopyranose
2.5 - 3
4-nitrophenyl-beta-D-mannopyranoside
pH 5.0, 37°C
0.000083
4-nitrophenyl-beta-mannopyranose
-
pH 7.0, 37°C, mutant enzyme E215A
16.9
Asn-(GlcNAc)2(Man)
-
-
2.8 - 12.5
Beta-D-mannohexaitol
2.8 - 12.5
beta-D-mannopentaitol
6.1
beta-D-mannosyl-1,4-beta-D-glucoside
-
pH 7.0, 37°C, wild-type enzyme
12 - 12.5
beta-D-mannotetraitol
12.5 - 80
beta-D-mannotriitol
0.9
mannobiose
-
pH 7.0, 37°C, wild-type enzyme
1.2 - 10
mannotriitol
0.1
Mannotriose
-
pH 7.0, 37°C, wild-type enzyme
3.22
Naphthyl-beta-D-mannopyranoside
-
-
2.33 - 3
o-nitrophenyl-beta-D-mannopyranoside
0.55 - 9
p-nitrophenyl beta-D-mannopyranoside
0.017 - 11
p-nitrophenyl-beta-D-mannopyranoside
0.12 - 5
p-nitrophenyl-beta-D-mannoside
6.5 - 7.1
phenyl beta-D-mannoside
additional information
additional information
-
as the enzyme is inhibited by the substrate p-nitrophenyl-beta-mannoside at concentrations above 0.4 mM, the KM-value of 0.3 mM is only an estimate
-