Inhibitors | Comment | Organism | Structure |
---|---|---|---|
Hg2+ | Ex 1, Ex 2 and alimentary canal enzyme | Bombyx mori |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.03 | - |
(N-acetyl-beta-D-glucosamine)4 | Ex 2 | Bombyx mori | |
0.05 | - |
(N-acetyl-beta-D-glucosamine)3 | Ex 2 | Bombyx mori | |
0.06 | - |
(N-acetyl-beta-D-glucosamine)6 | Ex 2 | Bombyx mori | |
0.07 | - |
(N-acetyl-beta-D-glucosamine)5 | Ex 1 | Bombyx mori | |
0.09 | - |
(N-acetyl-beta-D-glucosamine)5 | Ex 2 | Bombyx mori | |
0.1 | - |
(N-acetyl-beta-D-glucosamine)6 | Ex 1 | Bombyx mori | |
0.16 | - |
(N-acetyl-beta-D-glucosamine)4 | Ex 1 | Bombyx mori | |
0.31 | - |
p-nitrophenyl-beta-2-acetamido-2-deoxy-D-galactopyranoside | Ex 2 | Bombyx mori | |
0.42 | - |
p-nitrophenyl-beta-2-acetamido-2-deoxy-D-glucopyranoside | Ex 2 | Bombyx mori | |
0.49 | - |
p-nitrophenyl-beta-2-acetamido-2-deoxy-D-glucopyranoside | Ex 1 | Bombyx mori | |
0.64 | - |
(N-acetyl-beta-D-glucosamine)2 | Ex 2 | Bombyx mori | |
0.64 | - |
p-nitrophenyl-beta-2-acetamido-2-deoxy-D-galactopyranoside | Ex 1 | Bombyx mori | |
0.67 | - |
(N-acetyl-beta-D-glucosamine)2 | Ex 1 | Bombyx mori | |
0.87 | - |
(N-acetyl-beta-D-glucosamine)3 | Ex 1 | Bombyx mori |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
57500 | - |
alimentary canal enzyme: 1 * 67500 + 1 * 57500, SDS-PAGE | Bombyx mori |
57500 | - |
Ex 2: 1 * 67500 + 1 * 57500, SDS-PAGE | Bombyx mori |
67500 | - |
alimentary canal enzyme: 1 * 67500 + 1 * 57500, SDS-PAGE | Bombyx mori |
67500 | - |
Ex 2: 1 * 67500 + 1 * 57500, SDS-PAGE | Bombyx mori |
67500 | - |
Ex 1, homodimer: 2 * 67500 | Bombyx mori |
125000 | - |
Ex 2 and alimentary canal enzyme, gel filtration | Bombyx mori |
135000 | - |
Ex 1, gel filtration | Bombyx mori |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
N-acetyl-beta-D-hexosaminides + H2O | Bombyx mori | - |
N-acetyl-D-hexosamines | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Bombyx mori | - |
silkworm, pupae and fifth-instar larvae at the SP3 stage | - |
Purification (Comment) | Organism |
---|---|
Ex 1: 3000fold, Ex 2: 3200fold | Bombyx mori |
Reaction | Comment | Organism | Reaction ID |
---|---|---|---|
(N-acetyl-D-glucosamine)4 + 3 H2O = 4 2-(acetylamino)-2-deoxy-beta-D-glucopyranose | exo-type reaction | Bombyx mori |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
alimentary canal | - |
Bombyx mori | - |
integument | - |
Bombyx mori | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
(N-acetyl-beta-D-glucosamine)2 + H2O | - |
Bombyx mori | 2 N-acetyl-beta-D-glucosamine | - |
? | |
(N-acetyl-beta-D-glucosamine)3 + H2O | - |
Bombyx mori | (N-acetyl-beta-D-glucosamine)2 + N-acetyl-beta-D-glucosamine | - |
? | |
(N-acetyl-beta-D-glucosamine)4 + H2O | - |
Bombyx mori | (N-acetyl-beta-D-glucosamine)3 + N-acetyl-beta-D-glucosamine | - |
? | |
(N-acetyl-beta-D-glucosamine)5 + H2O | - |
Bombyx mori | (N-acetyl-beta-D-glucosamine)4 + N-acetyl-beta-D-glucosamine | - |
? | |
(N-acetyl-beta-D-glucosamine)6 + H2O | - |
Bombyx mori | (N-acetyl-beta-D-glucosamine)5 + N-acetyl-beta-D-glucosamine | - |
? | |
chitin oligosaccharides + H2O | (N-acetyl-D-glucosamine)2-6 | Bombyx mori | N-acetyl-D-glucosamine | - |
? | |
N,N',N'',N''',N'''',N'''''-hexaacetylchitohexaose + H2O | - |
Bombyx mori | ? | - |
? | |
N,N',N'',N''',N''''-pentaacetylchitopentaose + H2O | - |
Bombyx mori | ? | - |
? | |
N,N',N'',N'''-tetraacetylchitotetraose + H2O | - |
Bombyx mori | 2 N,N-diacetylchitobiose | - |
? | |
N,N',N''-triacetylchitotriose + H2O | - |
Bombyx mori | N-acetyl-D-glucosamine + N,N'-diacetylchitobiose | - |
? | |
N,N'-diacetylchitobiose + H2O | - |
Bombyx mori | deacetylated chitooligosaccharides + acetate | - |
? | |
N-acetyl-beta-D-hexosaminides + H2O | - |
Bombyx mori | N-acetyl-D-hexosamines | - |
? | |
p-nitrophenyl-beta-2-acetamido-2-deoxy-D-galactopyranoside + H2O | - |
Bombyx mori | 2-acetamido-2-deoxy-D-galactose + p-nitrophenol | - |
? | |
p-nitrophenyl-beta-2-acetamido-2-deoxy-D-glucopyranoside + H2O | - |
Bombyx mori | 2-acetamido-2-deoxy-D-glucose + p-nitrophenol | - |
? |
Subunits | Comment | Organism |
---|---|---|
dimer | alimentary canal enzyme: 1 * 67500 + 1 * 57500, SDS-PAGE | Bombyx mori |
dimer | Ex 2: 1 * 67500 + 1 * 57500, SDS-PAGE | Bombyx mori |
dimer | Ex 1, homodimer: 2 * 67500 | Bombyx mori |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
45 | - |
alimentary canal enzyme | Bombyx mori |
55 | - |
Ex 1 | Bombyx mori |
Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
---|---|---|---|
40 | - |
alimentary canal enzyme, stable below | Bombyx mori |
48 | - |
Ex 1, stable below | Bombyx mori |
58 | - |
alimentary canal enzyme, 50% of activity remains | Bombyx mori |
62 | - |
Ex 1, 50% of activity remains | Bombyx mori |
Turnover Number Minimum [1/s] | Turnover Number Maximum [1/s] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
29 | - |
(N-acetyl-beta-D-glucosamine)6 | Ex 2 | Bombyx mori | |
42 | - |
(N-acetyl-beta-D-glucosamine)4 | Ex 2 | Bombyx mori | |
55 | - |
(N-acetyl-beta-D-glucosamine)6 | Ex 1 | Bombyx mori | |
57 | - |
(N-acetyl-beta-D-glucosamine)5 | Ex 1 | Bombyx mori | |
76 | - |
(N-acetyl-beta-D-glucosamine)5 | Ex 2 | Bombyx mori | |
82 | - |
(N-acetyl-beta-D-glucosamine)3 | Ex 2 | Bombyx mori | |
110 | - |
(N-acetyl-beta-D-glucosamine)4 | Ex 1 | Bombyx mori | |
130 | - |
(N-acetyl-beta-D-glucosamine)3 | Ex 1 | Bombyx mori | |
320 | - |
p-nitrophenyl-beta-2-acetamido-2-deoxy-D-galactopyranoside | Ex 2 | Bombyx mori | |
570 | - |
p-nitrophenyl-beta-2-acetamido-2-deoxy-D-galactopyranoside | Ex 1 | Bombyx mori | |
580 | - |
(N-acetyl-beta-D-glucosamine)2 | Ex 2 | Bombyx mori | |
620 | - |
(N-acetyl-beta-D-glucosamine)2 | Ex 1 | Bombyx mori | |
720 | - |
p-nitrophenyl-beta-2-acetamido-2-deoxy-D-glucopyranoside | Ex 2 | Bombyx mori | |
890 | - |
p-nitrophenyl-beta-2-acetamido-2-deoxy-D-glucopyranoside | Ex 1 | Bombyx mori |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
5 | 6 | Ex 1, Ex 2 and alimentary canal enzyme | Bombyx mori |
pH Stability | pH Stability Maximum | Comment | Organism |
---|---|---|---|
5 | 9 | Ex 2, stable | Bombyx mori |
5 | 8.5 | alimentary canal enzyme, stable | Bombyx mori |
6 | 8 | Ex 1, stable | Bombyx mori |