将酶在一个20或100微升小瓶中预混合。这使得研究人员能够在变性和天然条件下快速从糖蛋白中去除大多数聚糖(O-连接粘蛋白除外)。通过将酶组合成一种易于使用的预混合溶液,研究人员在追求蛋白质去糖基化方面节省了时间和金钱。酶也可以单独提供在20微升小瓶的每种酶(KE-DG 01),使研究人员能够灵活地表征聚糖连接到他们的糖蛋白比我们的酶的混合物更充分。
Includes one 20 microlitre vial including the following enzymes in solution:
PNGase F (Chryseobacterium meningosepticum)
O-Glycosidase (Streptococcus pneumoniae)
Neuraminidase (Arthrobacter ureafaciens)
Beta-Galactosidase (Streptococcus pneumoniae)
β-N-Acetylglucosaminidase (Streptococcus pneumonia)
Other Supplied Reagents:
Reaction buffer
Denaturation Solution
Triton X
文献:
Kobata, A. Use of endo- and exoglycosidases for structural studies of glycoconjugates. Anal Biochem 100:1- 14 (1979).
Kim MS, Leahy D. Enzymatic deglycosylation of glycoproteins. Methods Enzymol.533:259-63 (2013).
Magnelli PE, Bielik AM, Guthrie EP. Identification and characterization of protein glycosylation using specific endo- and exoglycosidases. J Vis Exp. Dec 26;(58):e3749 (2011).
Segu ZM, Hussein A, Novotny MV, Mechref Y. Assigning N-glycosylation sites of glycoproteins using LC/MSMS in conjunction with endo-M/exoglycosidase mixture. J Proteome Res. Jul 2;9(7):3598-607 (2010).
Sojar, H. T. and O.P. Bahl. A chemical method for the deglycosylation of proteins. Arch Biochem Biophys 259:52-57 (1987).
Tarentino A.L. and T.H. Plummer. Enzymatic deglycosylation of asparagine- linked glycans: purification, properties, and specificitly of oligosaccharide- cleaving enzymes from Flavobacterium meningosepticum. Methods in Enzymol 230: 44-57 (1994).
Uchida, Y., Y. Tsukada and T. Sugimori. Enzymatic properties of neuraminidases from Arthrobacter ureafaciens. J Biochem (Tokyo) 86:573-585 (1979).
Zhang W, Wang H, Zhang L, Yao J, Yang P. Large-scale assignment of N-glycosylation sites using complementary enzymatic deglycosylation. Talanta. Jul 15;85(1):499-505 (2011).
QA-Bio成立于2002年,致力于为生物制药行业提供分析多聚糖所需的工具。其主要产品线:1. 糖苷内切酶(Endoglycosidases)、2. 糖苷外切酶(Exoglycosidases)、3. 去糖基化试剂盒(Deglycosylation)、4. 唾液酸(Sialic Acid Products)、5. 聚糖标记(Glycan Labeling)、6. 捕获和纯化(Capture and Cleanup)等,QA-Bio的产品被世界各地的生物制药公司用于美国食品药品监督管理局(FDA)和欧洲药品管理局(EMA)批准的程序,并对试剂盒和试剂的化学成分、材料、制造和储存程序进行了优化,以确保产品达到最高标准的准确性和再现性。