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This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
Representative SILAC MS1 spectra of Alix, CD63 and HER2 peptides with decreased relative abundance in exosomes that are derived from SKBR3 cells with ablated VPS4B expression. The relative abundance ratios were determined by IsoQuant.