Recombinant human Beta-galactoside alpha-2,6-sialyltransferase 1 (ST6Gal I) is expressed in human HEK 293 cells as a glycoprotein with a calculated molecular mass of 43.5 kDa (amino acids 27-406). The DTT-reduced protein migrates as a ~50 kDa polypeptide on SDS-PAGE due to glycosylation. This protein is manufactured in human cells, with no serum. The human cells expression system allows human-like glycosylation and folding, and often supports higher specific activity of the protein. The protein is produced with no artificial tags.
Recombinant human Beta-galactoside alpha-2,6-sialyltransferase 1 (ST6Gal I) is expressed in human HEK 293 cells as a glycoprotein with a calculated molecular mass of 43.5 kDa (amino acids 27-406). The DTT-reduced protein migrates as a ~50 kDa polypeptide on SDS-PAGE due to glycosylation. This protein is manufactured in human cells, with no serum. The human cells expression system allows human-like glycosylation and folding, and often supports higher specific activity of the protein. The protein is produced with no artificial tags.
规格
规格或纯度
≥300 units/mg protein, ST6GAL1 human recombinant, expressed in HEK 293 cells
英文名称
Beta-galactoside alpha-2,6-sialyltransferase 1
生化机理
ST6Gal I 催化 CMP-N-乙酰神经氨酸(CMP-sialic acid,CMP-NANA)向糖蛋白上的β-D-半乳糖基-1,4-N-乙酰-D-葡糖胺基端部转移。添加到半乳糖(Gal)上的硅铝酸可以与连接到 Gal 碳 3 上的羟基结合,形成 α-2,3 糖苷键,也可以与连接到碳 6 上的羟基结合,形成 α-2,6 糖苷键。ST6Gal I 可在寡糖和糖共轭物的非还原性末端 Galβ1 4GlcNAc 残基上生成α-2,6 连接的糖苷酸。