EC Number | Application | Comment | Organism |
---|---|---|---|
3.2.1.1 | industry | the alkaphilic nature of the enzyme with its stability is a interesting feature for possible industrial application | Streptomyces gulbargensis |
EC Number | Inhibitors | Comment | Organism | Structure |
---|---|---|---|---|
3.2.1.1 | Ag+ | 1 mM, 37°C, 30 min, pH 6.5, 36% relative activity | Streptomyces gulbargensis | |
3.2.1.1 | Ba2+ | 1 mM, 37°C, 30 min, pH 6.5, 29% relative activity | Streptomyces gulbargensis | |
3.2.1.1 | Co2+ | 1 mM, 37°C, 30 min, pH 6.5, 23% relative activity | Streptomyces gulbargensis | |
3.2.1.1 | Cs2+ | 1 mM, 37°C, 30 min, pH 6.5, 89% relative activity | Streptomyces gulbargensis | |
3.2.1.1 | Fe2+ | 1 mM, 37°C, 30 min, pH 6.5, 81% relative activity | Streptomyces gulbargensis | |
3.2.1.1 | Fe3+ | 1 mM, 37°C, 30 min, pH 6.5, 57% relative activity | Streptomyces gulbargensis | |
3.2.1.1 | Hg2+ | 1 mM, 37°C, 30 min, pH 6.5, 44% relative activity | Streptomyces gulbargensis | |
3.2.1.1 | Zn2+ | 1 mM, 37°C, 30 min, pH 6.5, 83% relative activity | Streptomyces gulbargensis |
EC Number | Metals/Ions | Comment | Organism | Structure |
---|---|---|---|---|
3.2.1.1 | Ca2+ | 1 mM, 37°C, 30 min, pH 6.5, 148% relative activity | Streptomyces gulbargensis | |
3.2.1.1 | Cu2+ | 1 mM, 37°C, 30 min, pH 6.5, 100% relative activity | Streptomyces gulbargensis | |
3.2.1.1 | Mg2+ | 1 mM, 37°C, 30 min, pH 6.5, 98% relative activity | Streptomyces gulbargensis | |
3.2.1.1 | Mn2+ | 1 mM, 37°C, 30 min, pH 6.5, 96% relative activity | Streptomyces gulbargensis | |
3.2.1.1 | Ni2+ | 1 mM, 37°C, 30 min, pH 6.5, 100% relative activity | Streptomyces gulbargensis | |
3.2.1.1 | Pb2+ | 1 mM, 37°C, 30 min, pH 6.5, 91% relative activity | Streptomyces gulbargensis | |
3.2.1.1 | Sr2+ | 1 mM, 37°C, 30 min, pH 6.5, 92% relative activity | Streptomyces gulbargensis |
EC Number | Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|---|
3.2.1.1 | 55000 | - |
SDS-PAGE | Streptomyces gulbargensis |
3.2.1.1 | 57900 | - |
gel filtration | Streptomyces gulbargensis |
EC Number | Organism | UniProt | Comment | Textmining |
---|---|---|---|---|
3.2.1.1 | Streptomyces gulbargensis | - |
DAS 131, alkali-thermotolerant strain | - |
3.2.1.1 | Streptomyces gulbargensis DAS 131 | - |
DAS 131, alkali-thermotolerant strain | - |
EC Number | Purification (Comment) | Organism |
---|---|---|
3.2.1.1 | - |
Streptomyces gulbargensis |
EC Number | Source Tissue | Comment | Organism | Textmining |
---|---|---|---|---|
3.2.1.1 | culture condition:peptone-grown cell | a good nitrogen source | Streptomyces gulbargensis | - |
3.2.1.1 | culture condition:starch-grown cell | a good carbon source, optimum yield is obtained, when the cells are grown in a minimal medium containing 1% (w/v) starch | Streptomyces gulbargensis | - |
EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
3.2.1.1 | additional information | maltose is not hydrolyzed by the alpha-amylase | Streptomyces gulbargensis | ? | - |
? | |
3.2.1.1 | additional information | maltose is not hydrolyzed by the alpha-amylase | Streptomyces gulbargensis DAS 131 | ? | - |
? | |
3.2.1.1 | starch + H2O | pH 6.5, 37°C | Streptomyces gulbargensis | maltose + maltotriose | the main products | ? | |
3.2.1.1 | starch + H2O | pH 6.5, 37°C | Streptomyces gulbargensis DAS 131 | maltose + maltotriose | the main products | ? |
EC Number | Subunits | Comment | Organism |
---|---|---|---|
3.2.1.1 | monomer | 1 * 55000, SDS-PAGE | Streptomyces gulbargensis |
EC Number | Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|---|
3.2.1.1 | 37 | - |
assay at | Streptomyces gulbargensis |
3.2.1.1 | 45 | - |
- |
Streptomyces gulbargensis |
EC Number | Temperature Minimum [°C] | Temperature Maximum [°C] | Comment | Organism |
---|---|---|---|---|
3.2.1.1 | 35 | 55 | 35°C: ca. 400 U/mg, 55°C: ca. 400 U/mg, temperature optimum at 45°C showing ca. 1300 U/mg protein | Streptomyces gulbargensis |
EC Number | Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
---|---|---|---|---|
3.2.1.1 | 45 | 50 | more than 40% of the activity is lost | Streptomyces gulbargensis |
3.2.1.1 | 60 | - |
more than 75-85% if the activity is lost | Streptomyces gulbargensis |
EC Number | pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|---|
3.2.1.1 | 6.5 | - |
assay at | Streptomyces gulbargensis |
3.2.1.1 | 9 | - |
remains active at very high alkaline pH (8.5-11), a characteristic that distinguishes it from most of the other alpha-amylases from bacterial sources | Streptomyces gulbargensis |
EC Number | pH Stability | pH Stability Maximum | Comment | Organism |
---|---|---|---|---|
3.2.1.1 | 11 | - |
relatively stable in alkaline condition with at least 70% of the activity at pH 9.0 | Streptomyces gulbargensis |