target,target_id,target_uniprot,target_species,ligand,ligand_id,ligand_species,ligand_pubchem_cid,smiles,inchi,inchikey,type,action,action_comment,endogenous,primary_target,concentration_range,affinity_parameter,affinity_high,affinity_median,affinity_low,original_affinity_units,original_affinity_low_nm,original_affinity_median_nm,original_affinity_high_nm,original_affinity_relation,assay_description,receptor_site,ligand_context,pubmed_id LGR5,148,O75473,Human,R-spondin-1,3697,Human,,,,,Agonist,Full agonist,,yes,,,pEC50,,11.1,,EC50,,0.008,,=,,,,21693646, LGR5,148,O75473,Human,R-spondin-2,3698,Human,,,,,Agonist,Full agonist,,yes,,,pEC50,,12.0,,EC50,,0.001,,=,,,,21693646, LGR5,148,O75473,Human,R-spondin-3,3699,Human,,,,,Agonist,Full agonist,,yes,,,pEC50,,11.0,,EC50,,0.01,,=,,,,21693646, LGR5,148,O75473,Human,R-spondin-4,3700,Human,,,,,Agonist,Full agonist,,yes,,,pEC50,,9.4,,EC50,,0.4,,=,,,,21693646,