| Literature DB >> 15978735 |
Yusuke Uemura1, Sadaki Asakuma, Tadashi Nakamura, Ikichi Arai, Michihiro Taki, Tadasu Urashima.
Abstract
Crude oligosaccharides were recovered from bottlenose dolphin (Tursiops truncatus) colostrum after chloroform/methanol extraction of lipids and protein precipitation, and purified using gel filtration, anion exchange chromatography and high performance liquid chromatography (HPLC). Their chemical structures characterized by NMR spectroscopy were as follows: GalNAc(beta1-4)[Neu5Ac(alpha2-3)]Gal(beta1-4)Glc, Neu5Ac(alpha2-3)Gal(beta1-4)Glc, Neu5Ac(alpha2-6)Gal(beta1-4)Glc and Gal(alpha1-4)Gal(beta1-4)Glc. The monosialyltetrasaccharide and neutral trisaccharide have not previously been found as free forms in any natural sources including milk or colostrum, although these structures have been found in the carbohydrate units of glycosphingolipids GM2 and Gb3.Entities:
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Year: 2005 PMID： 15978735 DOI： 10.1016/j.bbagen.2005.05.011
Source DB: PubMed Journal: Biochim Biophys Acta ISSN： 0006-3002