See how others have used p-β2-AR (Ser 355/Ser 356)-R: sc-16719-R antibody and or p-β2-AR (Ser 355/Ser 356)-R antibody conjugates.
Huang, CC. et al. 2009. A surface of the kinase domain critical for the allosteric activation of G protein-coupled receptor kinases. J. Biol. Chem. 284: 17206-17215. View PubMed Entry