AF40431 is the first reported small-molecule ligand of sortilin (IC50: 4.4 µM; Kd: 0.7 µM). AF40431 is bound in the neurotensin-binding site of sortilin.
NTRC-824 is >150-fold selectivity for NTS2 over NTS1 (Ki >30 μM). NTRC-824 is an effective, selective, and neurotensin-like nonpeptide neurotensin receptor type 2 (NTS2) antagonist (IC50: 38 nM and a Ki : 202 nM).
Levocarbastine is a second-generation H1 receptor antagonist for allergic conjunctivitis. It also acts as a potent selective antagonist for the neurotensin receptor NTS2 and is the first drug to be used to characterize different neurotensin subtypes.
[Lys8, Lys9]-Neurotensin (8-13) (JMV438) is a Neurotensin analog that elicits analgesic effects by activating the G protein-coupled receptors NTS1 and NTS2. The compound has K i values of 0.33 nM and 0.95 nM for hNTS1 and hNTS2 receptors, respectively.