Noncovalent dimer formation in liquid chromatography-mass spectrometry analysis.

ABSTRACT: Evidence will be presented that in the article "Novel LC-MS(2) Product Dependent Parallel Data Acquisition Function and Data Analysis Workflow for Sequencing and Identification of Intact Glycopeptides" written by Wu, S.-W.; Pu, T.-H.; Viner, R.; Khoo, K.-H. in Anal. Chem. 2014, 86, 5478-5486, noncovalent homo- and heterodimers were mis-identified as glycopeptides bearing well-defined N-linked structures, where the unexplained mass was attributed to excessive O-glycosylation. Noncovalent dimer formation of abundant components has not previously been considered as a complication in high-throughput proteomic analyses.

SUBMITTER: Medzihradszky KF 

PROVIDER: S-EPMC4165458 | biostudies-other | 2014 Sep

REPOSITORIES: biostudies-other