Fluorescence Labeling of Neurotensin(8-13) via Arginine Residues Gives Molecular Tools with High Receptor Affinity. - Keller, Max; Mahuroof, Shahani A.; Hong Yee, Vivyanne; Carpenter, Jessica; Schindler, Lisa; Littmann, Timo; Pegoli, Andrea; Hübner, Harald; Bernhardt, Günther; Gmeiner, Peter; Holliday, Nicholas D. (ACS Medicinal Chemistry Letters, 2020)