Glycan Types (Peak no.) NA2 LacdiNAc (P1) NA2 (P2) NA2F LacdiNAc (P3) NA2F (P4) HPLC (PA-Glycans) 7.2 31.0 10.1 51.6 QIT Positive ion mode PA- Glycans 7.2 41.9 4.5 46.3 PDAM- Glyco -Peptides 10.6 28.3 10.6 50.4

Table 2: PSA glycan or glycopeptide abundance ratios observed by MS and HPLC (%).