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Table 2 Quantification of phospho- and non-phospho-peptides

From: Probing the stoichiometry of β2-adrenergic receptor phosphorylation by targeted mass spectrometry

Peptides

fmol

% of total

pS355

0.56

1.1

pS356

4.8

9.9

Non-phopsphopeptide

43.4

89.0