Highly efficient transglycosylation of sialo-complex-type oligosaccharide using Coprinopsis cinerea endoglycosidase and sugar oxazoline.
Biotechnol Lett
; 39(1): 157-162, 2017 Jan.
Article
en En
| MEDLINE
| ID: mdl-27714557
ABSTRACT
OBJECTIVES:
To establish an efficient method of chemoenzymatic modification for making N-linked oligosaccharide chains of glycoproteins structurally homogeneous, which crucially affects their bioactivities.RESULTS:
Deglycosylated-RNase B (GlcNAc-RNase B; acceptor), sialylglyco (SG)-oxazoline (donor) and an N180H mutant of Coprinopsis cinerea endo-ß-N-acetylglucosaminidase (Endo-CCN180H) were employed. pH 7.5 was ideal for both SG-oxazoline's stability and Endo-CC's transglycosylation reaction. The most efficient reaction conditions for producing glycosylated-RNase B, virtually modified completely with sialo-biantennary-type complex oligosaccharide, were 80 µg GlcNAc-RNase B, 200 µg SG-oxazoline and 3 µg Endo-CCN180H in 20 µl 20 mM Tris/HCl pH 7.5 at 30 °C for 30-60 min.CONCLUSIONS:
This transglycosylation method using SG-oxazoline and Endo-CCN180H is beneficial for producing pharmaceutical glycoproteins modified with homogenous biantennary-complex-type oligosaccharides.Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Oligosacáridos
/
Manosil-Glicoproteína Endo-beta-N-Acetilglucosaminidasa
Idioma:
En
Año:
2017
Tipo del documento:
Article