EC Number | Inhibitors | Comment | Organism | Structure |
---|---|---|---|---|
3.2.1.22 | galactose | powerful inhibitor of alpha-Gal II, alpha-Gal III and alpha-Gal IV. 30% inhibition at 0.5 mM, nearly 100% inhibition at 40 mM | Aspergillus niger | |
3.2.1.22 | mannose | 70% inhibition of alpha-Gal I at 40 mM | Aspergillus niger |
EC Number | KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|---|
3.2.1.22 | 0.22 | - |
p-nitrophenyl alpha-D-galactopyranoside | pH 4.5, 50°C, isoenzyme alpha-Gal II | Aspergillus niger | |
3.2.1.22 | 0.24 | - |
p-nitrophenyl alpha-D-galactopyranoside | pH 4.5, 50°C, isoenzyme alpha-Gal IV | Aspergillus niger | |
3.2.1.22 | 0.27 | - |
p-nitrophenyl alpha-D-galactopyranoside | pH 4.5, 50°C, isoenzyme alpha-Gal III | Aspergillus niger | |
3.2.1.22 | 0.39 | - |
melibiose | pH 4.5, 50°C, isoenzyme alpha-Gal II | Aspergillus niger | |
3.2.1.22 | 1 | - |
melibiose | pH 4.5, 50°C, isoenzyme alpha-Gal I | Aspergillus niger | |
3.2.1.22 | 1.4 | - |
p-nitrophenyl alpha-D-galactopyranoside | pH 4.5, 50°C, isoenzyme alpha-Gal I | Aspergillus niger |
EC Number | Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|---|
3.2.1.22 | 64000 | - |
2 * 64000, alpha-Gal I, alpha-Gal II and alpha-Gal III, SDS-PAGE | Aspergillus niger |
3.2.1.22 | 117000 | - |
alpha-Gal I, alpha-Gal II and alpha-Gal III, gel filtration | Aspergillus niger |
3.2.1.22 | 350000 | - |
alpha-Gal I, gel filtration | Aspergillus niger |
EC Number | Organism | UniProt | Comment | Textmining |
---|---|---|---|---|
3.2.1.22 | Aspergillus niger | - |
- |
- |
EC Number | Purification (Comment) | Organism |
---|---|---|
3.2.1.22 | multiple isoforms: alpha-Gal I, alpha-Gal II, alpha-Gal III, alpha-Gal IV | Aspergillus niger |
EC Number | Source Tissue | Comment | Organism | Textmining |
---|---|---|---|---|
3.2.1.22 | culture filtrate | - |
Aspergillus niger | - |
EC Number | Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|---|
3.2.1.22 | 10.8 | - |
isoenzyme alpha-Gal III | Aspergillus niger |
3.2.1.22 | 11.52 | - |
isoenzyme alpha-Gal IV | Aspergillus niger |
3.2.1.22 | 21.95 | - |
isoenzyme alpha-Gal II | Aspergillus niger |
3.2.1.22 | 1080 | - |
isoenzyme alpha-Gal I | Aspergillus niger |
EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
3.2.1.22 | melibiose + H2O | - |
Aspergillus niger | D-galactose + D-glucose | - |
? | |
3.2.1.22 | p-nitrophenyl alpha-D-galactopyranoside + H2O | - |
Aspergillus niger | p-nitrophenol + alpha-D-galactose | - |
? | |
3.2.1.22 | stachyose + 2 H2O | high activity with alpha-Gal I, low activity with alpha-Gal II | Aspergillus niger | 2 alpha-D-galactose + sucrose | - |
? |
EC Number | Subunits | Comment | Organism |
---|---|---|---|
3.2.1.22 | dimer | 2 * 64000, alpha-Gal I, alpha-Gal II and alpha-Gal III, SDS-PAGE | Aspergillus niger |
3.2.1.22 | tetramer | 4 * 117000, SDS-PAGE | Aspergillus niger |
EC Number | Organism | Comment | pI Value Maximum | pI Value |
---|---|---|---|---|
3.2.1.22 | Aspergillus niger | isoelectric focusing, isoenzyme alpha-Gal I | - |
4.2 |
3.2.1.22 | Aspergillus niger | isoelectric focusing, isoenzyme alpha-Gal II | - |
4.5 |
3.2.1.22 | Aspergillus niger | isoelectric focusing, isoenzyme alpha-Gal III | - |
4.9 |
3.2.1.22 | Aspergillus niger | isoelectric focusing, isoenzyme alpha-Gal IV | - |
4.9 |