In the search for N-glycan disease biomarkers current glycoanalytical methods may not be revealing a complete picture of precious samples, and we may be missing valuable structural information that fall outside analysis windows. We report a targeted strategy combining PGC-LC-ESI-MS with exoglycosidases to improve the relative quantitation of tri and tetra-antennary glycan classes.
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Abrahams et al. (2015) studied this question.
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