Population studies of Vitamin D Binding Protein microheterogeneity by mass spectrometry lead to characterization of its genotype-dependent O-glycosylation patterns.

Abstract excerpt

Mass spectrometric evidence presented here characterizes the genotype-dependent glycosylation patterns for each of the three major allele products of Vitamin D Binding Protein found in the general human population. Findings based on the analysis of over 100 individual plasma samples demonstrated that all DBP allele products, except GC*2, are modified (10-25 mol%) with a linear (NeuNAc) 1(Gal) 1(GalNAc) 1...

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