CN1233826C - 一种重组毕赤酵母乳糖酶及其应用 - Google Patents
一种重组毕赤酵母乳糖酶及其应用 Download PDFInfo
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- CN1233826C CN1233826C CN 02108141 CN02108141A CN1233826C CN 1233826 C CN1233826 C CN 1233826C CN 02108141 CN02108141 CN 02108141 CN 02108141 A CN02108141 A CN 02108141A CN 1233826 C CN1233826 C CN 1233826C
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Images
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- Enzymes And Modification Thereof (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
Description
Aspergillus candidusCGMCC3.2919 | Aspergillus oryzae ATCC20423 | |
最适PH | 5.2 | 5.2 |
最适温度 | 60℃ | 55℃ |
PH稳定性 | 相近 | 相近 |
热稳定性 | 更稳定,60℃处理30min剩余酶活62% | 稳定性较差,60℃处理20min剩余酶活6.5% |
金属离子及相关试剂稳定性 | 更好 | 较差,尤其对Cu2+,Fe2+更敏感 |
比活(U/mg) | 706 | 531.8 |
km | 1.67 | 3.67 |
vmax | 3333.3 | 3333.3 |
cDNA序列同源性 | 99.5% | |
氨基酸序列同源性 | 99.0% |
Claims (2)
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CN100497612C (zh) * | 2006-01-25 | 2009-06-10 | 中国农业科学院生物技术研究所 | 一种耐高温乳糖酶的制备方法 |
CN101768578B (zh) * | 2008-12-26 | 2013-03-20 | 中国农业科学院饲料研究所 | 一种嗜酸乳糖酶bgala及其基因和应用 |
CN101948854B (zh) * | 2010-08-16 | 2012-01-11 | 中国农业科学院生物技术研究所 | 乳糖酶突变基因及其分泌表达方法和应用 |
CN102115718B (zh) * | 2010-12-16 | 2012-10-31 | 南京工业大学 | 一种表达β-半乳糖苷酶的重组菌株及其构建方法和应用 |
GB201419900D0 (en) * | 2014-11-07 | 2014-12-24 | Dupont Nutrition Biosci Aps | Method |
CN110628792B (zh) * | 2019-10-22 | 2021-04-20 | 怀化学院 | 一种冷耐受乳糖酶基因及其表达载体和蛋白 |
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