نتایج جستجو برای: fucose
تعداد نتایج: 2355 فیلتر نتایج به سال:
The incorporation of radioisotopically labeled fucose into a prominent fucosylated component, i.e., fucose-labeled amino acid fucoside 4c (FL4c), of human embryonic lung cells is markedly decreased in cell lines derived from human tumors. In the current study, we have extended the above observations by examining more closely related normal and transformed human cells, e.g., Wi38 cells and SV40-...
Background and Aim: Various investigations have shown that fucosylated glycoconjugates components of the cell surface and extracellular matrix play crucial roles in critical morphogenetic and histogenetic events along neuronal projections of immature neurons during embryonic development. In addition, fucosylated glycoconjugate within the axoplasm of the adult neurons is involved in fast transpo...
PURPOSE Removal of fucose residues from the oligosaccharides of human antibody is a powerful approach to enhance antibody-dependent cellular cytotoxicity (ADCC), a potential important antitumor mechanism of therapeutic antibodies. To provide clinically relevant evidence of this mechanism, we investigated ADCC of a fucose-negative version of trastuzumab [anti-human epidermal growth factor recept...
An efficient synthetic route to prepare O -(2- -benzyl-3,4-di- -acetyl-?/?- l -fucopyranosyl)-trichloroacetimidate from -fucose was developed by introducing the thiophenyl group at anomeric center and benzylidene functional protect 3 4 positions. Although three approaches were considered, best result obtained when, after 2-hydroxyl benzylation, both protective groups simultaneously removed usin...
The almond emulsin fucosidase that specifically hydrolyzes fucose in alpha (1-3) linkage to N-acetylglucosamine has been purified 1250-fold. The purification procedure includes ion exchange chromatography on sulfopropyl-Sephadex C-25, gel filtration on Sephacryl S-200, and affinity chromatography on Cibacron blue-Sepharose 4B-CL. The molecular weight of the fucosidase was estimated by gel filtr...
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