NIBR189 is a small molecule antagonist of the Epstein-Barr virus-induced gene 2 (EBI2; GPR183) receptor with IC50 of 16 nM(Binding) and 11 nM (Functional).
ML401 is an antagonist of the EBI2 receptor with an IC50 of 1.03 nM. ML401 displays activity in a chemotaxis assay (IC50=6.24 nM). ML401 shows good stability and no toxicity.