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3.2.1.52: beta-N-acetylhexosaminidase

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

Word Map on EC 3.2.1.52

Reaction

(N-acetyl-D-glucosamine)4
+ 3 H2O = 4 2-(acetylamino)-2-deoxy-beta-D-glucopyranose

Synonyms

2-acetamido-2-deoxy-beta-D-glucoside acetamidodeoxyglucohydrolase, 3-beta-N-acetylglucosaminidase, 65 kDa epididymal boar protein, Am2301, Am2446, At1g65600/F5I14_13, beta-acetylaminodeoxyhexosidase, beta-acetylhexosaminidase, beta-acetylhexosaminidinase, beta-D-hexosaminidase, beta-D-N-acetylhexosaminidase, Beta-GlcNAcase, beta-glucosidase, beta-HEX, beta-HexNAcase, beta-hexosaminidase, beta-hexosaminidase A, beta-hexosaminidase B, beta-hexosaminidase I, beta-hexosaminidase II, beta-N-acetyl-D-glucosaminidase, beta-N-acetyl-D-hexosaminidase, beta-N-acetyl-hexosaminidase, beta-N-acetylgalactosaminidase, beta-N-acetylglucosaminidase, Beta-N-acetylhexosaminidase, beta-N-acetylhexosaminidase A, beta-N-acetylhexosaminidase B, beta-Nacetylhexosaminidase S, beta-NAGase, beta-NAHA, Beta-NAHASE, bifunctional exo-beta-glucosidase/N-acetyl-beta-glucosaminidase, BmCHI-h, BmGlcNAcase 1, BmGlcNAcase 2, BmNPV CHIA, CbsA, Chi-I, Chi-II, chitobiase, chitobiase 2, CpGV V-CHIA, dispersin B, DmHEXA, DmHEXB, DspB, EC 3.2.1.29, EC 3.2.1.30, endo-beta-N-acetylglucosaminidase, EXC1Y, EXC2Y, exo-acting chitinase, exo-beta-D-N-acetylglucosaminidase, exo-beta-hexosaminidase, exo-type beta-N-acetylhexosaminidase, exochitinase, F3F20.4 protein, FDL, GH84C, GlcNAcase, Hex, Hex A, Hex B, Hex-1, Hex1, Hex2, Hex20, Hex4, HexB, HexD, HEXDC, hEXO1, HEXO2, HEXO3, hexosaminidase, hexosaminidase A, hexosaminidase B, hexosaminidase D, hHexA, lacto-N-biosidase, lnba, lysosomal beta-hexosaminidase, More, N-acetyl-beta-D-hexosaminidase, N-acetyl-beta-glucosaminidase, N-acetyl-beta-hexosaminidase, N-acetylglucosaminidase, N-acetylhexosaminidase, NAG-68, NAG-B, NAG1, NAG2, Nag3, NagA, NAGase, NagJ, NagZ, NAHA, NAHase, neutral hexosaminidase C, O-GlcNAcase, Pcb-NAHA1, Sfhex, SSO3039, StrH, zymocin alpha-subunit

ECTree

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

KM Value

KM Value on EC 3.2.1.52 - beta-N-acetylhexosaminidase

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KM VALUE [mM]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
0.053 - 0.066
(25R)-3beta-hydroxycholest-5-en-27-oate
0.117 - 4.1
(N-acetyl-beta-D-glucosamine)2
-
0.05 - 8
(N-acetyl-beta-D-glucosamine)3
-
0.03 - 0.16
(N-acetyl-beta-D-glucosamine)4
-
0.045 - 0.09
(N-acetyl-beta-D-glucosamine)5
-
0.047 - 0.1
(N-acetyl-beta-D-glucosamine)6
-
1.7
(N-acetyl-D-glucosamine)2
-
0.83
(N-acetyl-D-glucosamine)3
-
0.78
(N-acetyl-D-glucosamine)4
-
3.7
(N-acetyl-D-glucosamine)5
-
3.5
(N-acetyl-D-glucosamine)6
-
0.27
2,4-dinitrophenyl-N-acetyl-beta-D-glucosaminide
-
-
0.172 - 1.73
3-fluoro-4-nitrophenyl N-acetyl-beta-D-galactosaminide
0.852
3-fluoro-4-nitrophenyl N-acetyl-beta-D-glucosaminide
-
wild type enzyme, at pH 7.4 and 37°C
0.88
4-methylcoumar-7-yl-beta-N-acetyl-D-glucosamine
-
-
3.8
4-methylcoumar-7-yl-beta-N-fluoroacetyl-D-glucosamine
-
-
0.9
4-methylumbelliferyl beta-D-glucopyranoside
pH 4.0, 60°C
0.9 - 0.91
4-Methylumbelliferyl beta-D-glucosaminide
0.3 - 0.45
4-methylumbelliferyl beta-N-acetylgalactosaminide
0.02 - 5.67
4-methylumbelliferyl beta-N-acetylglucosaminide
0.05 - 1.13
4-methylumbelliferyl N-acetyl-beta-D-glucosamine
0.07 - 1.22
4-methylumbelliferyl N-acetyl-beta-D-glucosaminide
0.108 - 1.23
4-methylumbelliferyl-2-acetamido-2-deoxy-beta-D-galactopyranoside
0.11 - 1
4-methylumbelliferyl-2-acetamido-2-deoxy-beta-D-glucopyranoside
1.8
4-methylumbelliferyl-2-acetamido-2-deoxy-beta-D-glucopyranoside-6-sulfate
-
-
0.006
4-methylumbelliferyl-beta-D-glucosaminide
-
-
0.8 - 0.9
4-methylumbelliferyl-beta-N-acetylglucosaminide
-
liver and brain enzymes type S
27
4-methylumbelliferyl-N-acetyl-beta-D-glucosaminide
-
-
0.17
4-nitrophenyl 2-(acetylamino)-2-deoxy-beta-D-galactopyranoside
-
-
1.04
4-nitrophenyl 2-acetamido-2-deoxy-beta-D-galactopyranoside
-
pH 3.0, 20°C
0.53
4-nitrophenyl 2-acetamido-2-deoxy-beta-D-glucopyranose
-
-
0.13 - 0.64
4-nitrophenyl 2-acetamido-2-deoxy-beta-D-glucopyranoside
0.102
4-nitrophenyl 2-deoxy-2-difluoroacetamido-beta-D-galactopyranoside
-
wild type enzyme, at pH 7.4 and 37°C
0.533
4-nitrophenyl 2-deoxy-2-fluoroacetamido-beta-D-galactopyranoside
-
wild type enzyme, at pH 7.4 and 37°C
0.103
4-nitrophenyl 2-deoxy-2-trifluoroacetamido-beta-D-galactopyranoside
-
wild type enzyme, at pH 7.4 and 37°C
0.8
4-nitrophenyl beta-D-glucopyranoside
pH 4.0, 60°C
0.25 - 11.1
4-nitrophenyl beta-N-acetyl-D-galactosaminide
0.0027 - 4.15
4-nitrophenyl beta-N-acetyl-D-glucosaminide
0.37 - 0.44
4-nitrophenyl di-N-acetyl-beta-D-chitobiose
0.17
4-nitrophenyl N,N',N''-triacetylchitotrioside
-
-
0.13
4-nitrophenyl N,N'-diacetylchitobioside
-
-
0.124 - 0.975
4-nitrophenyl N-acetyl-beta-D-galactosamine
0.0525 - 3.29
4-nitrophenyl N-acetyl-beta-D-galactosaminide
0.026 - 101.1
4-nitrophenyl N-acetyl-beta-D-glucosamine
0.043 - 4.15
4-nitrophenyl N-acetyl-beta-D-glucosaminide
0.29 - 0.3
4-nitrophenyl tri-N-acetyl-beta-D-chitotriose
0.29
4-nitrophenyl-beta-N-acetyl-D-glucosaminide
-
8.57
4-nitrophenyl-N-acetyl-beta-D-glucosaminide
-
-
0.126 - 1.875
chitobiose
0.046 - 0.12
complex of GM2 activator protein and GM2 ganglioside
-
0.7
dansyl-Asn(GlcNAc)2Man
-
-
0.3
GlcNAcbeta(1-4)GlcNAc
-
2.58
glycopeptide monomer
-
-
-
0.38
N,N',N'',N'''-tetraacetylchitotetraose
-
-
0.39
N,N',N''-triacetylchitotriose
-
-
0.35
N,N,N,N,N-pentaacetylchitopentaose
-
-
0.31 - 0.93
N,N-diacetylchitobiose
0.215
N-acetyl-beta-D-galactosamine
-
-
0.187
N-acetyl-beta-D-glucosamine
-
-
1.732
N-acetyl-beta-D-glucosamine-6-sulfate
-
-
0.98 - 1.51
N-acetylglucosaminyl-beta-1,2-Man
0.018
O-2-acetamido-2-deoxy-beta-D-glucopyranosyl-(1-4)-2-acetamido-3-O-(D-carboxyethyl)-2-deoxy-D-glucose
-
-
12
p-nitrophenyl 2-acetamido-2-deoxy-4-O-sulfo-beta-D-glucopyranoside
-
-
0.03
p-nitrophenyl N,N'-diacetylchitobiose
-
Chi-I
0.7
p-nitrophenyl N-acetyl-beta-D-glucosaminide
-
-
0.51
p-nitrophenyl-2-acetamido-2-deoxy-beta-D-galactopyranoside
-
-
0.7 - 2.2
p-nitrophenyl-2-acetamido-2-deoxy-beta-D-glucopyranoside
0.04 - 7.8
p-nitrophenyl-beta-2-acetamido-2-deoxy-D-galactopyranoside
0.04 - 18.8
p-nitrophenyl-beta-2-acetamido-2-deoxy-D-glucopyranoside
0.59
p-nitrophenyl-beta-D-N-acetylglucosaminide
-
-
1.1 - 1.6
p-nitrophenyl-beta-N-acetylglucosaminopyranoside
0.0318
p-nitrophenyl-N,N'-diacetylchitobiose
-
Chi-II
0.0846 - 3
p-nitrophenyl-N-acetyl-beta-D-glucosaminide
0.00806
p-nitrophenyl-N-acetylglucosaminide
-
pH 6.0, 37°C
0.59 - 1.3
p-nitrophenyl-thio-beta-N-acetyl-D-glucosaminide
1
phenyl-N-acetyl-beta-D-galactosaminide
-
-
0.527 - 1
phenyl-N-acetyl-beta-D-glucosaminide
440
pyridylamino-glycoside A
-
-
27
pyridylamino-glycoside B
-
-
30
pyridylamino-glycoside C
-
-
additional information
additional information
-
KM 0.056, new form I, after 4 months of storage at 4°C
-