All vIL-4 peptide proteoforms detected by LC-MS/MS of infected cell culture at an FDR of 1%.

Columns shown are: peptide sequence with post-translation modification (PTM) masses in square brackets; minimum q-value assigned (from all samples); maximum per-sample PSM count observed; observed charge states across all samples; replicates the peptide proteoform was detected in; search engines identifying the specific proteoform. Note that where PTMs could not be confidently localized to a single amino acid, different search engines may prefer and report different modified positions. An example is the deamidated form of peptide LQGLYVNLYYVLNSVSNGGSSRK. (PDF)