| Literature DB >> 8785488 |
K Tokugawa1, S Oguri, M Takeuchi.
Abstract
We have developed a new method for the large scale preparation of pyridylaminated (PA-) oligosaccharides from glycoproteins. Phenol/chloroform extraction was adapted for the removal of protein and excess 2-aminopyridine, improving the efficiency of preparation. From a 2.5 g sample of human apo-transferrin, 25-30 mu mol of agalacto biantennary PA-oligosaccharide could be obtained. By increasing the concentration of PA-oligosaccharide substrate, we were able to detect a very low level of N-acetylglucosaminlytransferase IV activity in CHO cell extracts.Entities:
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Year: 1996 PMID: 8785488
Source DB: PubMed Journal: Glycoconj J ISSN: 0282-0080 Impact factor: 2.916