G0413
β(1→4)-半乳糖苷酶，位置特异性 来源于肺炎链球菌
recombinant, expressed in E. coli, buffered aqueous solution
产品名称
β(1→4)-半乳糖苷酶，位置特异性 来源于肺炎链球菌, recombinant, expressed in E. coli, buffered aqueous solution
Quality Level
recombinant
expressed in E. coli
form
buffered aqueous solution
specific activity
≥6 units/mg protein
packaging
vial of 0.06 unit
UniProt accession no.
shipped in
wet ice
storage temp.
2-8°C
Gene Information
human ... GLB1(2720)
Application
β（1→4）-半乳糖苷酶，是 肺炎链球菌 的位置特异性酶，可用于：
- 作为位置特异性酶，在小鼠中研究其末端半乳糖基化作用以及对糖鞘脂（GSPL）的保护作用。
- 用于消化放射性低聚糖。
- 作为位置特异性酶，研究其对无毒 杜氏利什曼原虫 克隆（A-LD）毒力特性的影响。
Biochem/physiol Actions
β-半乳糖苷酶可水解低聚糖、聚合物和次级代谢产物中的 D-半乳糖基部分。广泛用于乳制品行业，用于去除牛奶和乳制品中的乳糖，使乳糖不耐受的个体获益。β-半乳糖苷酶也可用于食品行业，改善甜度、口感和溶解情况。
General description
β-半乳糖苷酶存在于细菌、真菌、酵母和动物器官中。也存在于苹果、杏仁和杏等水果中。β-半乳糖苷酶是四聚体，由四条多肽链组成，这四条多肽链由氨基酸组装形成五个结构域。这些区域为果冻卷饼桶型，中心区域作为活性位点，其余区域由 β-夹心结构和纤连蛋白组成。
Other Notes
在pH 5.0、37 °C下，一个单位每分钟可水解1 μmole的对硝基苯基β-D-吡喃半乳糖苷。
Physical form
溶于20 mM Tris-HCl，pH 7.5、25 mM NaCl的溶液中
存储类别
10 - Combustible liquids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
法规信息
常规特殊物品
此项目有
Shaima Saqib et al.
3 Biotech, 7(1), 79-79 (2017-05-14)
The enzyme β-galactosidases have been isolated from various sources such as bacteria, fungi, yeast, vegetables, and recombinant sources. This enzyme holds importance due to its wide applications in food industries to manufacture lactose-hydrolyzed products for lactose-intolerant people and the formation
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Bhaumik, SK , et al.
Glycoconjugate Journal, 25(5), 459-472 (2008)
Sources of beta-galactosidase and its applications in food industry
Saqib S, et al.
3 Biotech, 7(1), 79-79 (2017)
Andrew J Hanneman et al.
Glycobiology, 16(9), 874-890 (2006-06-14)
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Critical reviews in biotechnology, 30(1), 41-62 (2010-02-11)
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Learn about O-linked glycan strategies, O-glycosidase actions, how to remove sialic acid residues, β-Elimination, and O-glycan modifications.
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