Table 6. Pi-S and Pi-Pi interaction parameters for each compound and IDO residues.

Interaction parameters	Receptor	Compound	End1	End2	Distances (Å)
	IDO	Epacadostat	A: PHE163	Epacadostat: O2	4.46
Pi-Pi interaction			A: TYR126	Epacadostat: O2	5.21
Pi-S interaction			A:CYS129:SG	Epacadostat:O2	5.90