LRID	ligand_ID	ligand_name	receptor_ID	receptor_name	type	pmid
LR02077	4908	NTF3	4915	NTRK2	Secreted protein to receptor interaction	27908981
LR02080	4909	NTF4	4915	NTRK2	Secreted protein to receptor interaction	7679912;27908981;11855816
LR02398	627	BDNF	4915	NTRK2	Cytokine-cytokine receptor interaction	27908981;7644540;9312147