Glycosphingolipids are ubiquitous in both cell membranes and serum. They either present in a free form or exist in a complex with some other proteins. The glycan head group moiety determines the biological function of glycosphingolipid. It is known to all that abnormal glycosphingolipid glycosylation is closely associated with many types of cancer, such as breast, lung cancer, and brain tumors. Glycosphingolipid glycans are also participating in many cellular processes, such as signaling and receptor functions, and cell differentiation. So it is of great value to analyze the structure of the head group of glycosphingolipid glycan in detail.
http://www.creative-proteomics.com/services/glycosphingolipid-glycans-analysis.htm
