CCX-777 is a partial agonist of β-arrestin-2 recruitment to ACKR3 (atypical chemokine receptor 3)[1].
References
[1] Gustavsson M, et al. Structural basis of ligand interaction with atypical chemokine receptor 3. Nat Commun. 2017 Jan 18;8:14135. DOI:10.1038/ncomms14135