β(1→4)-半乳糖苷酶，位置特异性 来源于肺炎链球菌

G755058-1vial

1vial

重组

expressed in E. coli, buffered aqueous solution

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。应用： 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。 β-Galactosidase is present in bacteria, fungi, yeast and animal organs. It is also found in fruits, such as apples, almonds and apricots. β-Galactosidase is a tetramer and is made up of four polypeptide chains consisting of amino acids that assemble to form five structural domains. The domains are jelly roll barrel, a central domain that serves as an active site and the remaining domains are composed of β-sandwich and fibronectin. Application: β(1→4)-Galactosidase, positionally specific from Streptococcus pneumonia has been used: as a position-specific enzyme to study its effects in the terminal galactosylation with protective efficacy of glycosphingolipid (GSPL) in mice. for the digestion of radioactive oligosaccharides. as a position-specific enzymeto study its effects on the virulence profile of avirulent Leishmania donovani clone (A-LD).

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。