RRC ID 22779
Author Nagata Y, Lee JM, Mon H, Imanishi S, Hong SM, Komatsu S, Oshima Y, Kusakabe T.
Title RNAi suppression of β-N-acetylglucosaminidase (BmFDL) for complex-type N-linked glycan synthesis in cultured silkworm cells.
Journal Biotechnol Lett
Abstract Glycoproteins have various biological functions including enzymatic activity, protein stability and others. Due to the presence of paucimannosidic N-linked glycans, recombinant proteins from an insect cell expression system may not be suitable for therapeutic use. Because baculovirus expression systems (BESs) are used to produce recombinant proteins, it is of interest to modify the endogenous N-glycosylation pathway in insects to mimic that of mammals. Using a soaking RNAi sensitive cell line, BmN4-SID1, has enabled us to suppress Bombyx mori FDL (BmFDL), an N-linked glycan-specific β-N-acetylglucosaminidase. Western blotting and MALDI-TOF MS demonstrated that the BmFDL depletion almost completely converted the paucimannosidic structures of the recombinant proteins produced by BES into a complex-type structure. This highly efficient, simple and low-cost method can be used for mass production of secretion proteins with complex-type N-linked glycans.
Volume 35(7)
Pages 1009-16
Published 2013-7-1
DOI 10.1007/s10529-013-1183-9
PMID 23568376
MeSH Acetylglucosaminidase / antagonists & inhibitors* Animals Bombyx / cytology* Cell Line Gene Silencing* Glycosylation Polysaccharides / metabolism* Recombinant Proteins / metabolism
IF 1.977
Times Cited 11
WOS Category BIOTECHNOLOGY & APPLIED MICROBIOLOGY
Resource
Silkworms