id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-268239-neb6xxlf	Illiano, Anna	Protein Glycosylation Investigated by Mass Spectrometry: An Overview	2020-08-28		.txt	text/plain	9540	442	34	For example, the alanine-proline-rich antigen (Apa) glycoprotein, expressed on the cell surface of different Mycobacteria species, induced glycan-specific T-cell response, whereas the non-glycosylated form of the same protein in Escherichia coli showed reduced stimulation of the CD4 + T-cell system compared to the native antigen, giving evidence of the crucial involvement of glycosylation in T-cell activation by Apa during infection [42] . Technological breakthroughs in mass spectrometric analysis for specific glycan epitopes provide a more molecular approach to examine potential changes in glycosylation or to display a sufficient degree of alteration in glycosylation, as mixtures of commonly occurring glycosylation patterns associated with normal cells or tumor-associated signals [82, 84] .	./cache/cord-268239-neb6xxlf.txt	./txt/cord-268239-neb6xxlf.txt