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. 2021 Jan 30;10:A0093. doi: 10.5702/massspectrometry.A0093

Table 1. Summary of identification results.

Phosphopeptides Unphosphorylated peptides
Unique peptide ions (Sequence+Modification+Charge)a 6,544 22,666
Unique peptides (Sequence+Modification)a 5,965 20,298
Unique peptide sequences (Sequence)a 4,942 20,298
Unique peptide ion pairs (P/uP)b (Sequence+Modification+Charge)a 4,433
Unique peptide pairs (P/uP)b (Sequence+Modification)a 4,080

a unique key, b P: phosphopeptides, uP: unphosphorylated peptides