GAL
PRODUCT DESCRIPTION | |
Catalog No.: | SDZ500120 |
Appearance: | White amorphous powder |
Source: | Microorganism |
Enzyme Commission Number: | EC 3.2.1.23 |
CAS Number: | 9031-11-2 |
Storage temperature: | -20℃ |
Specific activity: | ≥ 400U/mg protein |
Unit definition: | One unit will cause the formation of one micromole of ONP from ONPG per min at pH 7.3 at 37℃. |
PROPERTIES | |
Stability | Stable at -20℃ for at least five years |
Molecular weight: | 118 kDa (SDS-PAGE) |
Isoelectric point: | 4.6 |
Michaelis constant: | 3.4×10-4 M (ONPG) |
Optimum pH: | 7.0 |
Optimum temperature: | 45~55℃ |
pH Stability: | 5.5~9.5 (25℃,20hr) |
Thermal stability: | < 45℃ (pH 7.3, 15min) |
Inhibitors: | Co2+ ,Cu2+ ,Fe3+ ,Ni2+ ,Zn2+ ,Proclin |
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中文名称:半乳糖苷酶
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英文名称:β-galactosidase
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CAS:9031-11-2
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酶活:≥ 400U/mg protein
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活性:One unit will cause the formation of one micromole of ONP from ONPG per min at pH 7.3 at 37℃.
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