Compile Data Set for Download or QSAR

Found 16 hits with Last Name = 'long' and Initial = 'dh'   

Target/Host (Institution)	Ligand	Target/Host Links	Ligand Links	Trg + Lig Links	Ki nM	ΔG° kJ/mole	IC50 nM	Kd nM	EC50/IC50 nM	koff s-1	kon M-1s-1	pH	Temp °C
Mu-type opioid receptor (MOUSE)	BDBM50392801 (CHEMBL2151247) Show SMILES CNC(=O)COCC(=O)NCCCCCNC(=O)COCC(=O)N[C@@H]1CC[C@@]2(O)[C@H]3Cc4ccc(O)c5O[C@@H]1[C@]2(CCN3CC1CC1)c45 |r| Show InChI InChI=1S/C34H49N5O9/c1-35-26(41)17-46-18-27(42)36-12-3-2-4-13-37-28(43)19-47-20-29(44)38-23-9-10-34(45)25-15-22-7-8-24(40)31-30(22)33(34,32(23)48-31)11-14-39(25)16-21-5-6-21/h7-8,21,23,25,32,40,45H,2-6,9-20H2,1H3,(H,35,41)(H,36,42)(H,37,43)(H,38,44)/t23-,25-,32+,33+,34-/m1/s1	PDB Reactome pathway KEGG UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet	CHEMBL PC cid PC sid UniChem Similars	Article PubMed	0.324	n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a
TBA Curated by ChEMBL					Assay Description Displacement of [3H]-DAMGO from mouse MOR expressed in HEK293 cells				ACS Med Chem Lett 3: 640-644 (2012) Article DOI: 10.1021/ml300083p BindingDB Entry DOI: 10.7270/Q2BR8T8V
					More data for this Ligand-Target Pair
Mu-type opioid receptor (MOUSE)	BDBM50000787 ((1S,5R,13R,17S)-4-(cyclopropylmethyl)-10,17-dihydr...) Show SMILES Oc1ccc2C[C@H]3N(CC4CC4)CC[C@@]45[C@@H](Oc1c24)C(=O)CC[C@@]35O |r| Show InChI InChI=1S/C20H23NO4/c22-13-4-3-12-9-15-20(24)6-5-14(23)18-19(20,16(12)17(13)25-18)7-8-21(15)10-11-1-2-11/h3-4,11,15,18,22,24H,1-2,5-10H2/t15-,18+,19+,20-/m1/s1	PDB Reactome pathway KEGG UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet	Purchase DrugBank MCE KEGG PC cid PC sid UniChem Patents Similars	Article PubMed	0.646	n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a
TBA Curated by ChEMBL					Assay Description Displacement of [3H]-DAMGO from mouse MOR expressed in HEK293 cells				ACS Med Chem Lett 3: 640-644 (2012) Article DOI: 10.1021/ml300083p BindingDB Entry DOI: 10.7270/Q2BR8T8V
					More data for this Ligand-Target Pair
Delta-type opioid receptor (MOUSE)	BDBM50370067 (CHEMBL1237164) Show SMILES Oc1ccc2C[C@H]3N(CC4CC4)CC[C@@]45[C@@H](Oc1c24)c1[nH]c2ccccc2c1C[C@@]35O |r,TLB:28:29:7.12.13:4.5.18,30:29:7.12.13:4.5.18| Show InChI InChI=1S/C26H26N2O3/c29-19-8-7-15-11-20-26(30)12-17-16-3-1-2-4-18(16)27-22(17)24-25(26,21(15)23(19)31-24)9-10-28(20)13-14-5-6-14/h1-4,7-8,14,20,24,27,29-30H,5-6,9-13H2/t20-,24+,25+,26-/m1/s1	PDB Reactome pathway KEGG UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet	Purchase CHEMBL MCE KEGG PC cid PC sid PDB UniChem Similars	PDB Article PubMed	2.63	n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a
TBA Curated by ChEMBL					Assay Description Displacement of [3H]-DPDPE from mouse DOR expressed in HEK293 cells				ACS Med Chem Lett 3: 640-644 (2012) Article DOI: 10.1021/ml300083p BindingDB Entry DOI: 10.7270/Q2BR8T8V
					More data for this Ligand-Target Pair				3D Structure (crystal)
Mu-type opioid receptor (MOUSE)	BDBM50001707 (10,17-dihydroxy-4-methyl-(13R,17S)-12-oxa-4-azapen...) Show SMILES CN1CC[C@@]23[C@H]4Oc5c2c(C[C@@H]1[C@]3(O)CCC4=O)ccc5O |TLB:14:12:8.9.10:1.3.2,THB:13:12:8.9.10:1.3.2| Show InChI InChI=1S/C17H19NO4/c1-18-7-6-16-13-9-2-3-10(19)14(13)22-15(16)11(20)4-5-17(16,21)12(18)8-9/h2-3,12,15,19,21H,4-8H2,1H3/t12-,15+,16+,17-/m1/s1	PDB Reactome pathway KEGG UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet	Purchase CHEMBL DrugBank KEGG PC cid PC sid UniChem Patents Similars	Article PubMed	5.01	n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a
TBA Curated by ChEMBL					Assay Description Displacement of [3H]-DAMGO from mouse MOR expressed in HEK293 cells				ACS Med Chem Lett 3: 640-644 (2012) Article DOI: 10.1021/ml300083p BindingDB Entry DOI: 10.7270/Q2BR8T8V
					More data for this Ligand-Target Pair
Mu-type opioid receptor (MOUSE)	BDBM50392797 (CHEMBL2151327) Show SMILES CN1CC[C@@]23[C@H]4Oc5c2c(C[C@@H]1[C@]3(O)CC[C@@H]4NC(=O)COCC(=O)NCCCCCNC(=O)COCC(=O)Nc1cccc2c3C[C@@]4(O)[C@H]6Cc7ccc(OCCc8ccccc8)c8O[C@@H](c3[nH]c12)[C@]4(CCN6CC1CC1)c78)ccc5O |r| Show InChI InChI=1S/C64H75N7O12/c1-70-26-22-61-53-39-15-17-45(72)57(53)82-59(61)44(19-21-63(61,77)47(70)29-39)68-52(76)36-80-34-50(74)66-25-7-3-6-24-65-49(73)33-79-35-51(75)67-43-12-8-11-41-42-31-64(78)48-30-40-16-18-46(81-28-20-37-9-4-2-5-10-37)58-54(40)62(64,23-27-71(48)32-38-13-14-38)60(83-58)56(42)69-55(41)43/h2,4-5,8-12,15-18,38,44,47-48,59-60,69,72,77-78H,3,6-7,13-14,19-36H2,1H3,(H,65,73)(H,66,74)(H,67,75)(H,68,76)/t44-,47+,48+,59-,60-,61-,62-,63+,64+/m0/s1	PDB Reactome pathway KEGG UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet	CHEMBL PC cid PC sid UniChem Similars	Article PubMed	9.77	n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a
TBA Curated by ChEMBL					Assay Description Displacement of [3H]-DAMGO from mouse MOR expressed in HEK293 cells				ACS Med Chem Lett 3: 640-644 (2012) Article DOI: 10.1021/ml300083p BindingDB Entry DOI: 10.7270/Q2BR8T8V
					More data for this Ligand-Target Pair
Mu-type opioid receptor (MOUSE)	BDBM50370067 (CHEMBL1237164) Show SMILES Oc1ccc2C[C@H]3N(CC4CC4)CC[C@@]45[C@@H](Oc1c24)c1[nH]c2ccccc2c1C[C@@]35O |r,TLB:28:29:7.12.13:4.5.18,30:29:7.12.13:4.5.18| Show InChI InChI=1S/C26H26N2O3/c29-19-8-7-15-11-20-26(30)12-17-16-3-1-2-4-18(16)27-22(17)24-25(26,21(15)23(19)31-24)9-10-28(20)13-14-5-6-14/h1-4,7-8,14,20,24,27,29-30H,5-6,9-13H2/t20-,24+,25+,26-/m1/s1	PDB Reactome pathway KEGG UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet	Purchase CHEMBL MCE KEGG PC cid PC sid PDB UniChem Similars	Article PubMed	16.6	n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a
TBA Curated by ChEMBL					Assay Description Displacement of [3H]-DAMGO from mouse MOR expressed in HEK293 cells				ACS Med Chem Lett 3: 640-644 (2012) Article DOI: 10.1021/ml300083p BindingDB Entry DOI: 10.7270/Q2BR8T8V
					More data for this Ligand-Target Pair
Delta-type opioid receptor (MOUSE)	BDBM50039029 ((+)-4-((alpha R)-((2S,5R)-4-allyl-2,5-dimethylpipe...) Show SMILES CCN(CC)C(=O)c1ccc(cc1)[C@@H](N1C[C@@H](C)N(CC=C)C[C@@H]1C)c1cccc(OC)c1 |r| Show InChI InChI=1S/C28H39N3O2/c1-7-17-30-19-22(5)31(20-21(30)4)27(25-11-10-12-26(18-25)33-6)23-13-15-24(16-14-23)28(32)29(8-2)9-3/h7,10-16,18,21-22,27H,1,8-9,17,19-20H2,2-6H3/t21-,22+,27-/m1/s1	PDB Reactome pathway KEGG UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet	Purchase CHEMBL MCE PC cid PC sid UniChem Patents Similars	Article PubMed	16.6	n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a
TBA Curated by ChEMBL					Assay Description Displacement of [3H]-DPDPE from mouse DOR expressed in HEK293 cells				ACS Med Chem Lett 3: 640-644 (2012) Article DOI: 10.1021/ml300083p BindingDB Entry DOI: 10.7270/Q2BR8T8V
					More data for this Ligand-Target Pair
Delta-type opioid receptor (MOUSE)	BDBM50392799 (CHEMBL2151245) Show SMILES [#6]-[#6]-[#7](-[#6]-[#6])-[#6](=O)-c1ccc(cc1)-[#6](=[#6]-1\[#6]-[#6]-[#7]-[#6]-[#6]-1)\c1c(-[#6])cc(-[#7]-[#6](=O)-[#6]-[#8]-[#6]-[#6](=O)-[#7]-[#6]-[#6]-[#6]-[#6]-[#6]-[#7]-[#6](=O)-[#6]-[#8]-[#6]-[#6](=O)-[#7]-[#6@@H]-2-[#6]-[#6][C@@]3([#8])[#6@H]-4-[#6]-c5ccc(-[#8])c6-[#8]-[#6@@H]-2[C@]3([#6]-[#6]-[#7]-4-[#6]-[#6]-2-[#6]-[#6]-2)c56)cc1-[#6] |r| Show InChI InChI=1S/C58H77N7O10/c1-5-64(6-2)56(71)41-14-12-39(13-15-41)52(40-19-25-59-26-20-40)51-36(3)28-43(29-37(51)4)62-49(69)34-73-32-47(67)60-23-8-7-9-24-61-48(68)33-74-35-50(70)63-44-18-21-58(72)46-30-42-16-17-45(66)54-53(42)57(58,55(44)75-54)22-27-65(46)31-38-10-11-38/h12-17,28-29,38,44,46,55,59,66,72H,5-11,18-27,30-35H2,1-4H3,(H,60,67)(H,61,68)(H,62,69)(H,63,70)/t44-,46-,55+,57+,58-/m1/s1	PDB Reactome pathway KEGG UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet	CHEMBL PC cid PC sid UniChem Similars	Article PubMed	19.9	n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a
TBA Curated by ChEMBL					Assay Description Displacement of [3H]-DPDPE from mouse DOR expressed in HEK293 cells				ACS Med Chem Lett 3: 640-644 (2012) Article DOI: 10.1021/ml300083p BindingDB Entry DOI: 10.7270/Q2BR8T8V
					More data for this Ligand-Target Pair
Mu-type opioid receptor (MOUSE)	BDBM50392802 (CHEMBL2151248) Show SMILES CNC(=O)COCC(=O)NCCCCCNC(=O)COCC(=O)N[C@H]1CC[C@@]2(O)[C@H]3Cc4ccc(O)c5O[C@@H]1[C@]2(CCN3C)c45 |r| Show InChI InChI=1S/C31H45N5O9/c1-32-23(38)15-43-16-24(39)33-11-4-3-5-12-34-25(40)17-44-18-26(41)35-20-8-9-31(42)22-14-19-6-7-21(37)28-27(19)30(31,29(20)45-28)10-13-36(22)2/h6-7,20,22,29,37,42H,3-5,8-18H2,1-2H3,(H,32,38)(H,33,39)(H,34,40)(H,35,41)/t20-,22+,29-,30-,31+/m0/s1	PDB Reactome pathway KEGG UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet	CHEMBL PC cid PC sid UniChem Similars	Article PubMed	22.4	n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a
TBA Curated by ChEMBL					Assay Description Displacement of [3H]-DAMGO from mouse MOR expressed in HEK293 cells				ACS Med Chem Lett 3: 640-644 (2012) Article DOI: 10.1021/ml300083p BindingDB Entry DOI: 10.7270/Q2BR8T8V
					More data for this Ligand-Target Pair
Delta-type opioid receptor (MOUSE)	BDBM50392801 (CHEMBL2151247) Show SMILES CNC(=O)COCC(=O)NCCCCCNC(=O)COCC(=O)N[C@@H]1CC[C@@]2(O)[C@H]3Cc4ccc(O)c5O[C@@H]1[C@]2(CCN3CC1CC1)c45 |r| Show InChI InChI=1S/C34H49N5O9/c1-35-26(41)17-46-18-27(42)36-12-3-2-4-13-37-28(43)19-47-20-29(44)38-23-9-10-34(45)25-15-22-7-8-24(40)31-30(22)33(34,32(23)48-31)11-14-39(25)16-21-5-6-21/h7-8,21,23,25,32,40,45H,2-6,9-20H2,1H3,(H,35,41)(H,36,42)(H,37,43)(H,38,44)/t23-,25-,32+,33+,34-/m1/s1	PDB Reactome pathway KEGG UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet	CHEMBL PC cid PC sid UniChem Similars	Article PubMed	30.9	n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a
TBA Curated by ChEMBL					Assay Description Displacement of [3H]-DPDPE from mouse DOR expressed in HEK293 cells				ACS Med Chem Lett 3: 640-644 (2012) Article DOI: 10.1021/ml300083p BindingDB Entry DOI: 10.7270/Q2BR8T8V
					More data for this Ligand-Target Pair
Delta-type opioid receptor (MOUSE)	BDBM50392798 (CHEMBL2151328) Show SMILES Nc1cccc2c3C[C@@]4(O)[C@H]5Cc6ccc(OCCc7ccccc7)c7O[C@@H](c3[nH]c12)[C@]4(CCN5CC1CC1)c67 |r| Show InChI InChI=1S/C34H35N3O3/c35-25-8-4-7-23-24-18-34(38)27-17-22-11-12-26(39-16-13-20-5-2-1-3-6-20)31-28(22)33(34,14-15-37(27)19-21-9-10-21)32(40-31)30(24)36-29(23)25/h1-8,11-12,21,27,32,36,38H,9-10,13-19,35H2/t27-,32+,33+,34-/m1/s1	PDB Reactome pathway KEGG UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet	CHEMBL PC cid PC sid UniChem Similars	Article PubMed	91.2	n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a
TBA Curated by ChEMBL					Assay Description Displacement of [3H]-DPDPE from mouse DOR expressed in HEK293 cells				ACS Med Chem Lett 3: 640-644 (2012) Article DOI: 10.1021/ml300083p BindingDB Entry DOI: 10.7270/Q2BR8T8V
					More data for this Ligand-Target Pair
Mu-type opioid receptor (MOUSE)	BDBM50392798 (CHEMBL2151328) Show SMILES Nc1cccc2c3C[C@@]4(O)[C@H]5Cc6ccc(OCCc7ccccc7)c7O[C@@H](c3[nH]c12)[C@]4(CCN5CC1CC1)c67 |r| Show InChI InChI=1S/C34H35N3O3/c35-25-8-4-7-23-24-18-34(38)27-17-22-11-12-26(39-16-13-20-5-2-1-3-6-20)31-28(22)33(34,14-15-37(27)19-21-9-10-21)32(40-31)30(24)36-29(23)25/h1-8,11-12,21,27,32,36,38H,9-10,13-19,35H2/t27-,32+,33+,34-/m1/s1	PDB Reactome pathway KEGG UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet	CHEMBL PC cid PC sid UniChem Similars	Article PubMed	120	n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a
TBA Curated by ChEMBL					Assay Description Displacement of [3H]-DAMGO from mouse MOR expressed in HEK293 cells				ACS Med Chem Lett 3: 640-644 (2012) Article DOI: 10.1021/ml300083p BindingDB Entry DOI: 10.7270/Q2BR8T8V
					More data for this Ligand-Target Pair
Delta-type opioid receptor (MOUSE)	BDBM50392797 (CHEMBL2151327) Show SMILES CN1CC[C@@]23[C@H]4Oc5c2c(C[C@@H]1[C@]3(O)CC[C@@H]4NC(=O)COCC(=O)NCCCCCNC(=O)COCC(=O)Nc1cccc2c3C[C@@]4(O)[C@H]6Cc7ccc(OCCc8ccccc8)c8O[C@@H](c3[nH]c12)[C@]4(CCN6CC1CC1)c78)ccc5O |r| Show InChI InChI=1S/C64H75N7O12/c1-70-26-22-61-53-39-15-17-45(72)57(53)82-59(61)44(19-21-63(61,77)47(70)29-39)68-52(76)36-80-34-50(74)66-25-7-3-6-24-65-49(73)33-79-35-51(75)67-43-12-8-11-41-42-31-64(78)48-30-40-16-18-46(81-28-20-37-9-4-2-5-10-37)58-54(40)62(64,23-27-71(48)32-38-13-14-38)60(83-58)56(42)69-55(41)43/h2,4-5,8-12,15-18,38,44,47-48,59-60,69,72,77-78H,3,6-7,13-14,19-36H2,1H3,(H,65,73)(H,66,74)(H,67,75)(H,68,76)/t44-,47+,48+,59-,60-,61-,62-,63+,64+/m0/s1	PDB Reactome pathway KEGG UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet	CHEMBL PC cid PC sid UniChem Similars	Article PubMed	204	n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a
TBA Curated by ChEMBL					Assay Description Displacement of [3H]-DPDPE from mouse DOR expressed in HEK293 cells				ACS Med Chem Lett 3: 640-644 (2012) Article DOI: 10.1021/ml300083p BindingDB Entry DOI: 10.7270/Q2BR8T8V
					More data for this Ligand-Target Pair
Mu-type opioid receptor (MOUSE)	BDBM50392800 (CHEMBL2151246) Show SMILES [#6]-[#6]-[#7](-[#6]-[#6])-[#6](=O)-c1ccc(cc1)-[#6](=[#6]-1\[#6]-[#6]-[#7]-[#6]-[#6]-1)\c1c(-[#6])cc(-[#7]-[#6](=O)-[#6]-[#8]-[#6]-[#6](=O)-[#7]-[#6]-[#6]-[#6]-[#6]-[#6]-[#7]-[#6](=O)-[#6]-[#8]-[#6]-[#6](=O)-[#7]-[#6])cc1-[#6] Show InChI InChI=1S/C39H56N6O7/c1-6-45(7-2)39(50)31-13-11-29(12-14-31)38(30-15-19-41-20-16-30)37-27(3)21-32(22-28(37)4)44-36(49)26-52-25-35(48)43-18-10-8-9-17-42-34(47)24-51-23-33(46)40-5/h11-14,21-22,41H,6-10,15-20,23-26H2,1-5H3,(H,40,46)(H,42,47)(H,43,48)(H,44,49)	PDB Reactome pathway KEGG UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet	CHEMBL PC cid PC sid UniChem	Article PubMed	550	n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a
TBA Curated by ChEMBL					Assay Description Displacement of [3H]-DAMGO from mouse MOR expressed in HEK293 cells				ACS Med Chem Lett 3: 640-644 (2012) Article DOI: 10.1021/ml300083p BindingDB Entry DOI: 10.7270/Q2BR8T8V
					More data for this Ligand-Target Pair
Delta-type opioid receptor (MOUSE)	BDBM50001707 (10,17-dihydroxy-4-methyl-(13R,17S)-12-oxa-4-azapen...) Show SMILES CN1CC[C@@]23[C@H]4Oc5c2c(C[C@@H]1[C@]3(O)CCC4=O)ccc5O |TLB:14:12:8.9.10:1.3.2,THB:13:12:8.9.10:1.3.2| Show InChI InChI=1S/C17H19NO4/c1-18-7-6-16-13-9-2-3-10(19)14(13)22-15(16)11(20)4-5-17(16,21)12(18)8-9/h2-3,12,15,19,21H,4-8H2,1H3/t12-,15+,16+,17-/m1/s1	PDB Reactome pathway KEGG UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet	Purchase CHEMBL DrugBank KEGG PC cid PC sid UniChem Patents Similars	Article PubMed	724	n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a
TBA Curated by ChEMBL					Assay Description Displacement of [3H]-DPDPE from mouse DOR expressed in HEK293 cells				ACS Med Chem Lett 3: 640-644 (2012) Article DOI: 10.1021/ml300083p BindingDB Entry DOI: 10.7270/Q2BR8T8V
					More data for this Ligand-Target Pair
Delta-type opioid receptor (MOUSE)	BDBM50392800 (CHEMBL2151246) Show SMILES [#6]-[#6]-[#7](-[#6]-[#6])-[#6](=O)-c1ccc(cc1)-[#6](=[#6]-1\[#6]-[#6]-[#7]-[#6]-[#6]-1)\c1c(-[#6])cc(-[#7]-[#6](=O)-[#6]-[#8]-[#6]-[#6](=O)-[#7]-[#6]-[#6]-[#6]-[#6]-[#6]-[#7]-[#6](=O)-[#6]-[#8]-[#6]-[#6](=O)-[#7]-[#6])cc1-[#6] Show InChI InChI=1S/C39H56N6O7/c1-6-45(7-2)39(50)31-13-11-29(12-14-31)38(30-15-19-41-20-16-30)37-27(3)21-32(22-28(37)4)44-36(49)26-52-25-35(48)43-18-10-8-9-17-42-34(47)24-51-23-33(46)40-5/h11-14,21-22,41H,6-10,15-20,23-26H2,1-5H3,(H,40,46)(H,42,47)(H,43,48)(H,44,49)	PDB Reactome pathway KEGG UniProtKB/SwissProt B.MOAD GoogleScholar AffyNet	CHEMBL PC cid PC sid UniChem	Article PubMed	2.88E+3	n/a	n/a	n/a	n/a	n/a	n/a	n/a	n/a
TBA Curated by ChEMBL					Assay Description Displacement of [3H]-DPDPE from mouse DOR expressed in HEK293 cells				ACS Med Chem Lett 3: 640-644 (2012) Article DOI: 10.1021/ml300083p BindingDB Entry DOI: 10.7270/Q2BR8T8V
					More data for this Ligand-Target Pair