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Literature summary extracted from
- Purification and characterization of beta-N-acetylgalactosaminidase from Bacillus sp. AT173-1 (1997), J. Biochem., 122, 330-336.
Activating Compound
| EC Number | Activating Compound | Comment | Organism | Structure |
|---|---|---|---|---|
| 3.2.1.53 | dithiothreitol | - |
Bacillus sp. (in: Bacteria) |  |
Inhibitors
| EC Number | Inhibitors | Comment | Organism | Structure |
|---|---|---|---|---|
| 3.2.1.53 | Cu2+ | enzyme activity completely inhibited in the presence of 10 mM CuSO4 | Bacillus sp. (in: Bacteria) | |
| 3.2.1.53 | Fe2+ | enzyme activity completely inhibited in the presence of 10 mM FeSO4 | Bacillus sp. (in: Bacteria) | |
| 3.2.1.53 | N-acetylgalactosamine | relative activity in presence of 10 mM 50%, in presence of 50 mM 12% | Bacillus sp. (in: Bacteria) | |
| 3.2.1.53 | Urea | relative activity in presence of 2 M 32% | Bacillus sp. (in: Bacteria) | |
| 3.2.1.53 | Zn2+ | enzyme activity completely inhibited in the presence of 10 mM ZnSO4 | Bacillus sp. (in: Bacteria) | |
KM Value [mM]
| EC Number | KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|---|
| 3.2.1.53 | 1 | - |
4-nitrophenyl beta-acetylgalactosaminide | - |
Bacillus sp. (in: Bacteria) |
Metals/Ions
| EC Number | Metals/Ions | Comment | Organism | Structure |
|---|---|---|---|---|
| 3.2.1.53 | Mg2+ | relative activity in presence of MgSO4 10 mM 104% | Bacillus sp. (in: Bacteria) | |
Molecular Weight [Da]
| EC Number | Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
|---|---|---|---|---|
| 3.2.1.53 | 48000 | - |
SDS-PAGE, enzyme denatured with SDS and 2-mercaptoethanol | Bacillus sp. (in: Bacteria) |
| 3.2.1.53 | 54000 | - |
native enzyme, gel filtration | Bacillus sp. (in: Bacteria) |
Natural Substrates/ Products (Substrates)
| EC Number | Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 3.2.1.53 | beta-N-acetylgalactosaminylated oligosaccharides + H2O | Bacillus sp. (in: Bacteria) | - |
? | - |
? | |
| 3.2.1.53 | beta-N-acetylgalactosaminylated oligosaccharides + H2O | Bacillus sp. (in: Bacteria) AT173-1 | - |
? | - |
? | |
Organism
| EC Number | Organism | UniProt | Comment | Textmining |
|---|---|---|---|---|
| 3.2.1.53 | Bacillus sp. (in: Bacteria) | - |
AT173-1 | - |
| 3.2.1.53 | Bacillus sp. (in: Bacteria) AT173-1 | - |
AT173-1 | - |
Purification (Commentary)
| EC Number | Purification (Comment) | Organism |
|---|---|---|
| 3.2.1.53 | - |
Bacillus sp. (in: Bacteria) |
Source Tissue
| EC Number | Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|---|
| 3.2.1.53 | culture medium | AT 173-1, culture broth centrifuged to remove cells | Bacillus sp. (in: Bacteria) | - |
Specific Activity [micromol/min/mg]
| EC Number | Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
|---|---|---|---|---|
| 3.2.1.53 | 15.4 | - |
- |
Bacillus sp. (in: Bacteria) |
Substrates and Products (Substrate)
| EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 3.2.1.53 | 4-nitrophenyl beta-acetylgalactosaminide + H2O | - |
Bacillus sp. (in: Bacteria) | 4-nitrophenol + beta-acetylgalactosamine | - |
? | |
| 3.2.1.53 | 4-nitrophenyl beta-acetylgalactosaminide + H2O | - |
Bacillus sp. (in: Bacteria) AT173-1 | 4-nitrophenol + beta-acetylgalactosamine | - |
? | |
| 3.2.1.53 | beta-N-acetylgalactosaminylated oligosaccharides + H2O | - |
Bacillus sp. (in: Bacteria) | ? | - |
? | |
| 3.2.1.53 | beta-N-acetylgalactosaminylated oligosaccharides + H2O | - |
Bacillus sp. (in: Bacteria) AT173-1 | ? | - |
? | |
| 3.2.1.53 | N-acetyl-beta-D-galactosaminides + H2O | substrate specificity towards beta-GalNAc residues is markedly higher than those of any other beta-GalNacase | Bacillus sp. (in: Bacteria) | N-acetyl-D-galactosamine + an alcohol | - |
? | |
| 3.2.1.53 | N-acetyl-beta-D-galactosaminides + H2O | substrate specificity towards beta-GalNAc residues is markedly higher than those of any other beta-GalNacase | Bacillus sp. (in: Bacteria) AT173-1 | N-acetyl-D-galactosamine + an alcohol | - |
? | |
| 3.2.1.53 | p-nitrophenyl beta-N-acetylgalactosaminide + H2O | - |
Bacillus sp. (in: Bacteria) | ? | - |
? | |
| 3.2.1.53 | p-nitrophenyl beta-N-acetylgalactosaminide + H2O | - |
Bacillus sp. (in: Bacteria) AT173-1 | ? | - |
? | |
Synonyms
| EC Number | Synonyms | Comment | Organism |
|---|---|---|---|
| 3.2.1.53 | Bacillus beta-GlcNAcase | - |
Bacillus sp. (in: Bacteria) |
Temperature Optimum [°C]
| EC Number | Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
|---|---|---|---|---|
| 3.2.1.53 | 45 | - |
- |
Bacillus sp. (in: Bacteria) |
Temperature Range [°C]
| EC Number | Temperature Minimum [°C] | Temperature Maximum [°C] | Comment | Organism |
|---|---|---|---|---|
| 3.2.1.53 | 4 | 45 | enzyme gradually inactivated in solution at 4°C, reactivated by incubation with DTT | Bacillus sp. (in: Bacteria) |
pH Optimum
| EC Number | pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|---|
| 3.2.1.53 | 6 | - |
4-methylumbelliferyl beta-N-acetylgalactosaminide | Bacillus sp. (in: Bacteria) |
pH Range
| EC Number | pH Minimum | pH Maximum | Comment | Organism |
|---|---|---|---|---|
| 3.2.1.53 | 5.5 | 9.5 | enzyme retains more than 80% activity | Bacillus sp. (in: Bacteria) |
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