Figure 1.
Schematic representation of the study design. The immunoglobulin G (IgG) glycopeptides of 40 individual mice were analyzed by nanoliquid chromatography mass spectrometry (nanoLC-MS(/MS)). The mice originated from the strains BALB/c, C57BL/6, CD-1, and Swiss Webster. Of each strain, five male and five female mice were included. Based on these analyses, relative quantification of the glycoforms was performed in a strain- and subclass-specific way. In addition, released IgG glycans of four pooled plasma samples (one male and one female) of the same strains were analyzed by nanoLC-MS(/MS), matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF(/TOF))-MS(/MS) and ultraperformance liquid chromatography (UPLC)-fluorescence for further structural elucidation of the glycoforms.