EC Number | KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|---|
3.2.1.20 | additional information | - |
additional information | kinetics | Mortierella alliacea | |
3.2.1.20 | 2.4 | - |
maltotetraose | pH 5.0, 37°C | Mortierella alliacea | |
3.2.1.20 | 2.7 | - |
maltotriose | pH 5.0, 37°C | Mortierella alliacea | |
3.2.1.20 | 2.8 | - |
maltopentaose | pH 5.0, 37°C | Mortierella alliacea | |
3.2.1.20 | 2.9 | - |
maltohexaose | pH 5.0, 37°C | Mortierella alliacea | |
3.2.1.20 | 3.5 | - |
maltose | pH 5.0, 37°C | Mortierella alliacea | |
3.2.1.20 | 4.9 | - |
maltoheptaose | pH 5.0, 37°C | Mortierella alliacea |
EC Number | Localization | Comment | Organism | GeneOntology No. | Textmining |
---|---|---|---|---|---|
3.2.1.20 | extracellular | - |
Mortierella alliacea | - |
- |
EC Number | Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|---|
3.2.1.20 | 31000 | - |
1 * 61000 + 1 * 31000, SDS-PAGE | Mortierella alliacea |
3.2.1.20 | 61000 | - |
1 * 61000 + 1 * 31000, SDS-PAGE | Mortierella alliacea |
3.2.1.20 | 92000 | - |
gel filtration | Mortierella alliacea |
EC Number | Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
3.2.1.20 | additional information | Mortierella alliacea | the organism does not possess alpha-amylase activity | ? | - |
? | |
3.2.1.20 | additional information | Mortierella alliacea YN-15 | the organism does not possess alpha-amylase activity | ? | - |
? |
EC Number | Organism | UniProt | Comment | Textmining |
---|---|---|---|---|
3.2.1.20 | Mortierella alliacea | - |
- |
- |
3.2.1.20 | Mortierella alliacea YN-15 | - |
- |
- |
EC Number | Purification (Comment) | Organism |
---|---|---|
3.2.1.20 | from culture supernatant, 33fold by ethanol precipitation and 4 chromatographic steps | Mortierella alliacea |
EC Number | Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|---|
3.2.1.20 | 1 | - |
purified enzyme, substrate isomaltose | Mortierella alliacea |
3.2.1.20 | 3.4 | - |
purified enzyme, substrate 4-nitrophenyl alpha-D-glucopyranoside | Mortierella alliacea |
3.2.1.20 | 5.3 | - |
purified enzyme, substrate maltitol | Mortierella alliacea |
3.2.1.20 | 7 | - |
purified enzyme, substrate kojibiose | Mortierella alliacea |
3.2.1.20 | 8.3 | - |
purified enzyme, substrate amylose | Mortierella alliacea |
3.2.1.20 | 26.1 | - |
purified enzyme, substrate nigerose | Mortierella alliacea |
3.2.1.20 | 29.8 | - |
purified enzyme, substrate maltose | Mortierella alliacea |
3.2.1.20 | 30.2 | - |
purified enzyme, substrate glycogen | Mortierella alliacea |
3.2.1.20 | 34.3 | - |
purified enzyme, substrate amylopectin | Mortierella alliacea |
3.2.1.20 | 42.9 | - |
purified enzyme, substrate soluble starch | Mortierella alliacea |
EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
3.2.1.20 | 4-nitrophenyl alpha-D-glucopyranoside + H2O | - |
Mortierella alliacea | 4-nitrophenol + alpha-D-glucopyranose | - |
? | |
3.2.1.20 | amylopectin + H2O | high activity | Mortierella alliacea | ? | - |
? | |
3.2.1.20 | amylose + H2O | n = 18 | Mortierella alliacea | alpha-D-glucose | - |
? | |
3.2.1.20 | D-glucose + ethanol | transglucosylation activity in presence of ethanol with several substrates, e.g. maltose, kojibiose, nigerose, glycogen, starch, overview, the enzyme favors the forward reaction | Mortierella alliacea | ethyl-alpha-D-glucoside | - |
r | |
3.2.1.20 | glycogen + H2O | high activity | Mortierella alliacea | alpha-D-glucose | - |
? | |
3.2.1.20 | isomaltose + H2O | low activity | Mortierella alliacea | 2 D-glucose | - |
? | |
3.2.1.20 | kojibiose + H2O | - |
Mortierella alliacea | alpha-D-glucose + D-glucose | - |
? | |
3.2.1.20 | kojibiose + H2O | - |
Mortierella alliacea YN-15 | alpha-D-glucose + D-glucose | - |
? | |
3.2.1.20 | maltitol + H2O | - |
Mortierella alliacea | ? | - |
? | |
3.2.1.20 | maltoheptaose + H2O | - |
Mortierella alliacea | maltohexaose + D-glucose | - |
? | |
3.2.1.20 | maltohexaose + H2O | - |
Mortierella alliacea | maltopentaose + D-glucose | - |
? | |
3.2.1.20 | maltopentaose + H2O | - |
Mortierella alliacea | D-glucose + ? | - |
? | |
3.2.1.20 | maltose + H2O | maltose is a glucosyl donor for transglycosylation activity, high activity | Mortierella alliacea | 2 D-glucose | - |
? | |
3.2.1.20 | maltose + H2O | maltose is a glucosyl donor for transglycosylation activity, high activity | Mortierella alliacea YN-15 | 2 D-glucose | - |
? | |
3.2.1.20 | maltotetraose + H2O | - |
Mortierella alliacea | maltotriose + D-glucose | - |
? | |
3.2.1.20 | maltotriose + H2O | - |
Mortierella alliacea | maltose + D-glucose | - |
? | |
3.2.1.20 | additional information | the organism does not possess alpha-amylase activity | Mortierella alliacea | ? | - |
? | |
3.2.1.20 | additional information | dextran, pullulan, ethyl-alpha-D-glucoside, sucrose, and trehalose are poor substrates | Mortierella alliacea | ? | - |
? | |
3.2.1.20 | additional information | the organism does not possess alpha-amylase activity | Mortierella alliacea YN-15 | ? | - |
? | |
3.2.1.20 | additional information | dextran, pullulan, ethyl-alpha-D-glucoside, sucrose, and trehalose are poor substrates | Mortierella alliacea YN-15 | ? | - |
? | |
3.2.1.20 | nigerose + H2O | high activity | Mortierella alliacea | 2 alpha-D-glucose | - |
? | |
3.2.1.20 | nigerose + H2O | high activity | Mortierella alliacea YN-15 | 2 alpha-D-glucose | - |
? | |
3.2.1.20 | starch + H2O | soluble starch, high activity, best substrate | Mortierella alliacea | alpha-D-glucose | - |
? |
EC Number | Subunits | Comment | Organism |
---|---|---|---|
3.2.1.20 | dimer | 1 * 61000 + 1 * 31000, SDS-PAGE | Mortierella alliacea |
3.2.1.20 | More | the subunits are stably aggregated to each other even at high salt concentrations of 0.5 M | Mortierella alliacea |
EC Number | Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|---|
3.2.1.20 | 45 | 50 | formation of ethyl-alpha-D-glucose | Mortierella alliacea |
3.2.1.20 | 55 | - |
substrate maltose | Mortierella alliacea |
EC Number | Turnover Number Minimum [1/s] | Turnover Number Maximum [1/s] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|---|
3.2.1.20 | additional information | - |
additional information | - |
Mortierella alliacea |
EC Number | pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|---|
3.2.1.20 | 5 | - |
formation of ethyl-alpha-D-glucose | Mortierella alliacea |
3.2.1.20 | 5 | 6 | substrate maltose | Mortierella alliacea |