BindingDB Reactant_set_id Ligand SMILES Ligand InChI Ligand InChI Key BindingDB MonomerID BindingDB Ligand Name Target Name Target Source Organism According to Curator or DataSource Ki (nM) IC50 (nM) Kd (nM) EC50 (nM) kon (M-1-s-1) koff (s-1) pH Temp (C) Curation/DataSource Article DOI BindingDB Entry DOI PMID PubChem AID Patent Number Authors Institution Link to Ligand in BindingDB Link to Target in BindingDB Link to Ligand-Target Pair in BindingDB Ligand HET ID in PDB PDB ID(s) for Ligand-Target Complex PubChem CID of Ligand PubChem SID of Ligand ChEBI ID of Ligand ChEMBL ID of Ligand DrugBank ID of Ligand IUPHAR_GRAC ID of Ligand KEGG ID of Ligand ZINC ID of Ligand Number of Protein Chains in Target (>1 implies a multichain complex) BindingDB Target Chain Sequence PDB ID(s) of Target Chain UniProt (SwissProt) Recommended Name of Target Chain UniProt (SwissProt) Entry Name of Target Chain UniProt (SwissProt) Primary ID of Target Chain UniProt (SwissProt) Secondary ID(s) of Target Chain UniProt (SwissProt) Alternative ID(s) of Target Chain UniProt (TrEMBL) Submitted Name of Target Chain UniProt (TrEMBL) Entry Name of Target Chain UniProt (TrEMBL) Primary ID of Target Chain UniProt (TrEMBL) Secondary ID(s) of Target Chain UniProt (TrEMBL) Alternative ID(s) of Target Chain 50139999 COc1ccccc1N1CCC(CNCC2COc3ccc(Cl)cc3O2)CC1 InChI=1S/C22H27ClN2O3/c1-26-20-5-3-2-4-19(20)25-10-8-16(9-11-25)13-24-14-18-15-27-21-7-6-17(23)12-22(21)28-18/h2-7,12,16,18,24H,8-11,13-15H2,1H3 QHLRKDSRGUZHSH-UHFFFAOYSA-N 50079939 (7-Chloro-2,3-dihydro-benzo[1,4]dioxin-2-ylmethyl)-[1-(2-methoxy-phenyl)-piperidin-4-ylmethyl]-amine::CHEMBL418854 5-hydroxytryptamine receptor 4 Sus scrofa >1000 ChEMBL 10.1021/jm9910122 10.7270/Q2WH2P6K 10464021 Birch, AM; Bradley, PA; Gill, JC; Kerrigan, F; Needham, PL Knoll Pharmaceuticals http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50079939 http://www.bindingdb.org/jsp/dbsearch/PrimarySearch_ki.jsp?energyterm=kJ/mole&tag=pol&polymerid=50001336&target=5-hydroxytryptamine+receptor+4&column=ki&startPg=0&Increment=50&submit=Search http://www.bindingdb.org/jsp/dbsearch/PrimarySearch_ki.jsp?energyterm=kJ/mole&tag=r21&monomerid=50079939&enzyme=5-hydroxytryptamine+receptor+4&column=ki&startPg=0&Increment=50&submit=Search 9865858 103972053 CHEMBL418854 ZINC03828998 1 MDKLDANGSSKEGFGSVEKVVLLTFVSAVILMAVLGNLLVMVAVCRDRQLRKIKTNYFIVSLAFADLLVSVLVMPFGAIELVQDVWIYGEMFCLVRTSLDVLLTTASIFHLCCISLDRYYAICCQPLVYRNKMTPLRVAVLLAGCWAIPVLISFLPIMQGWNNIGITDLERTSKPRLGQDLHVIEKRKFHQNSNSTYCIFMVNKPYAITCSVVAFYIPFLLMVLAYWRIYVTAKEHAHQIQMLQRAGAPAEGRPPSADQHSTHRMRTETKAAKTLCVIMGCFCLCWAPFFVTNVVDPFADYSVPGQVWTAFLWLGYINSGLNPFLYAFLNKSFRRAFLIILCCDDERYRRPCVAGQTVPCSTTTVNGSTHVLRDAVECGGQWESQCHPPATSPLVAAQPSDT 5-hydroxytryptamine receptor 4 Q6Q253_PIG Q6Q253 51093861 CCCCN1CCC(COC(=O)c2cc(I)c(N)c3OCCOc23)CC1 InChI=1S/C19H27IN2O4/c1-2-3-6-22-7-4-13(5-8-22)12-26-19(23)14-11-15(20)16(21)18-17(14)24-9-10-25-18/h11,13H,2-10,12,21H2,1H3 FCKKCDRMGKXQDK-UHFFFAOYSA-N 50327858 (1-Butylpiperidin-4-yl)methyl 8-amino-7-iodo-2,3-dihydrobenzo-[b][1,4]dioxine-5-carboxylate::8-Amino-7-iodo-2,3-dihydro-benzo[1,4]dioxine-5-carboxylic acid 1-butyl-piperidin-4-ylmethyl ester::CHEMBL114112::SB-207710::SB207710 5-hydroxytryptamine receptor 4 Sus scrofa 0.080000 ChEMBL 10.1016/j.bmcl.2013.09.097 10.7270/Q2RJ4KZ2 24157369 Caille, F; Morley, TJ; Tavares, AA; Papin, C; Twardy, NM; Alagille, D; Lee, HS; Baldwin, RM; Seibyl, JP; Barret, O; Tamagnan, GD Molecular NeuroImaging LLC http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50327858 http://www.bindingdb.org/jsp/dbsearch/PrimarySearch_ki.jsp?energyterm=kJ/mole&tag=pol&polymerid=50001336&target=5-hydroxytryptamine+receptor+4&column=ki&startPg=0&Increment=50&submit=Search http://www.bindingdb.org/jsp/dbsearch/PrimarySearch_ki.jsp?energyterm=kJ/mole&tag=r21&monomerid=50327858&enzyme=5-hydroxytryptamine+receptor+4&column=ki&startPg=0&Increment=50&submit=Search 5311423 123106973 CHEMBL114112 257 ZINC01536105 1 MDKLDANGSSKEGFGSVEKVVLLTFVSAVILMAVLGNLLVMVAVCRDRQLRKIKTNYFIVSLAFADLLVSVLVMPFGAIELVQDVWIYGEMFCLVRTSLDVLLTTASIFHLCCISLDRYYAICCQPLVYRNKMTPLRVAVLLAGCWAIPVLISFLPIMQGWNNIGITDLERTSKPRLGQDLHVIEKRKFHQNSNSTYCIFMVNKPYAITCSVVAFYIPFLLMVLAYWRIYVTAKEHAHQIQMLQRAGAPAEGRPPSADQHSTHRMRTETKAAKTLCVIMGCFCLCWAPFFVTNVVDPFADYSVPGQVWTAFLWLGYINSGLNPFLYAFLNKSFRRAFLIILCCDDERYRRPCVAGQTVPCSTTTVNGSTHVLRDAVECGGQWESQCHPPATSPLVAAQPSDT 5-hydroxytryptamine receptor 4 Q6Q253_PIG Q6Q253 51093860 CN1CCC(COC(=O)c2cc(Cl)c(N)c3OCCOc23)CC1 InChI=1S/C16H21ClN2O4/c1-19-4-2-10(3-5-19)9-23-16(20)11-8-12(17)13(18)15-14(11)21-6-7-22-15/h8,10H,2-7,9,18H2,1H3 FWDOTRBSNDBFMN-UHFFFAOYSA-N 50448450 CHEMBL3126112 5-hydroxytryptamine receptor 4 Sus scrofa 0.080000 ChEMBL 10.1016/j.bmcl.2013.09.097 10.7270/Q2RJ4KZ2 24157369 Caille, F; Morley, TJ; Tavares, AA; Papin, C; Twardy, NM; Alagille, D; Lee, HS; Baldwin, RM; Seibyl, JP; Barret, O; Tamagnan, GD Molecular NeuroImaging LLC http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50448450 http://www.bindingdb.org/jsp/dbsearch/PrimarySearch_ki.jsp?energyterm=kJ/mole&tag=pol&polymerid=50001336&target=5-hydroxytryptamine+receptor+4&column=ki&startPg=0&Increment=50&submit=Search http://www.bindingdb.org/jsp/dbsearch/PrimarySearch_ki.jsp?energyterm=kJ/mole&tag=r21&monomerid=50448450&enzyme=5-hydroxytryptamine+receptor+4&column=ki&startPg=0&Increment=50&submit=Search 76310958 194946346 CHEMBL3126112 1 MDKLDANGSSKEGFGSVEKVVLLTFVSAVILMAVLGNLLVMVAVCRDRQLRKIKTNYFIVSLAFADLLVSVLVMPFGAIELVQDVWIYGEMFCLVRTSLDVLLTTASIFHLCCISLDRYYAICCQPLVYRNKMTPLRVAVLLAGCWAIPVLISFLPIMQGWNNIGITDLERTSKPRLGQDLHVIEKRKFHQNSNSTYCIFMVNKPYAITCSVVAFYIPFLLMVLAYWRIYVTAKEHAHQIQMLQRAGAPAEGRPPSADQHSTHRMRTETKAAKTLCVIMGCFCLCWAPFFVTNVVDPFADYSVPGQVWTAFLWLGYINSGLNPFLYAFLNKSFRRAFLIILCCDDERYRRPCVAGQTVPCSTTTVNGSTHVLRDAVECGGQWESQCHPPATSPLVAAQPSDT 5-hydroxytryptamine receptor 4 Q6Q253_PIG Q6Q253 50996271 CN1CCC2(COc3cc4CCN(C(=O)c5ccc(cc5)-c5ccc(cc5C)-c5noc(C)n5)c4cc23)CC1 InChI=1S/C32H32N4O3/c1-20-16-25(30-33-21(2)39-34-30)8-9-26(20)22-4-6-23(7-5-22)31(37)36-13-10-24-17-29-27(18-28(24)36)32(19-38-29)11-14-35(3)15-12-32/h4-9,16-18H,10-15,19H2,1-3H3 ATQMRMGXINTJHV-UHFFFAOYSA-N 50084959 11'-Methyl-5-[[2'-methyl-4'-(5-methyl-1,2,4-oxadiazol-3-yl)biphenyl-4-yl]carbonyl]-2,3,6,7-tetrahydrospiro[furo-[2,3-f]indole-3,4'-piperidine](SB-224289)::4-[2-methyl-4-(5-methyl-1,2,4-oxadiazol-3-yl)phenyl]phenyl-1'-methylspiro[3,5,6,7-tetrahydro-2H-furo[2,3-f]indole-3,4'-(hexahydropyridine)]-5-ylmethanone::CHEMBL281350::SB-224289::[2'-Methyl-4'-(5-methyl-[1,2,4]oxadiazol-3-yl)-biphenyl-4-yl]-[3-(1-methyl-piperidine)-2,3,6,7-tetrahydro-1-oxa-5-aza-s-indacen-5-yl]-methanone 5-hydroxytryptamine receptor 4 Sus scrofa >1000 ChEMBL 10.1021/jm970457s 10.7270/Q2XS5WMN 9548813 Gaster, LM; Blaney, FE; Davies, S; Duckworth, DM; Ham, P; Jenkins, S; Jennings, AJ; Joiner, GF; King, FD; Mulholland, KR; Wyman, PA; Hagan, JJ; Hatcher, J; Jones, BJ; Middlemiss, DN; Price, GW; Riley, G; Roberts, C; Routledge, C; Selkirk, J; Slade, PD SmithKline Beecham Pharmaceuticals Ltd http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50084959 http://www.bindingdb.org/jsp/dbsearch/PrimarySearch_ki.jsp?energyterm=kJ/mole&tag=pol&polymerid=50001336&target=5-hydroxytryptamine+receptor+4&column=ki&startPg=0&Increment=50&submit=Search http://www.bindingdb.org/jsp/dbsearch/PrimarySearch_ki.jsp?energyterm=kJ/mole&tag=r21&monomerid=50084959&enzyme=5-hydroxytryptamine+receptor+4&column=ki&startPg=0&Increment=50&submit=Search 3378093 103984445 64069 CHEMBL281350 130 ZINC01485772 1 MDKLDANGSSKEGFGSVEKVVLLTFVSAVILMAVLGNLLVMVAVCRDRQLRKIKTNYFIVSLAFADLLVSVLVMPFGAIELVQDVWIYGEMFCLVRTSLDVLLTTASIFHLCCISLDRYYAICCQPLVYRNKMTPLRVAVLLAGCWAIPVLISFLPIMQGWNNIGITDLERTSKPRLGQDLHVIEKRKFHQNSNSTYCIFMVNKPYAITCSVVAFYIPFLLMVLAYWRIYVTAKEHAHQIQMLQRAGAPAEGRPPSADQHSTHRMRTETKAAKTLCVIMGCFCLCWAPFFVTNVVDPFADYSVPGQVWTAFLWLGYINSGLNPFLYAFLNKSFRRAFLIILCCDDERYRRPCVAGQTVPCSTTTVNGSTHVLRDAVECGGQWESQCHPPATSPLVAAQPSDT 5-hydroxytryptamine receptor 4 Q6Q253_PIG Q6Q253 50562057 CCCCN1CCC(COC(=O)c2c3OCCCn3c3ccccc23)CC1 InChI=1S/C22H30N2O3/c1-2-3-11-23-13-9-17(10-14-23)16-27-22(25)20-18-7-4-5-8-19(18)24-12-6-15-26-21(20)24/h4-5,7-8,17H,2-3,6,9-16H2,1H3 HATXPTCDDBRERG-UHFFFAOYSA-N 50421360 CHEMBL358119::SB-207058 5-hydroxytryptamine receptor 4 Sus scrofa 0.063096 ChEMBL 10.1016/S0960-894X(01)80176-1 10.7270/Q25T3MSB n/a n/a http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50421360 http://www.bindingdb.org/jsp/dbsearch/PrimarySearch_ki.jsp?energyterm=kJ/mole&tag=pol&polymerid=50001336&target=5-hydroxytryptamine+receptor+4&column=ki&startPg=0&Increment=50&submit=Search http://www.bindingdb.org/jsp/dbsearch/PrimarySearch_ki.jsp?energyterm=kJ/mole&tag=r21&monomerid=50421360&enzyme=5-hydroxytryptamine+receptor+4&column=ki&startPg=0&Increment=50&submit=Search 9864179 164150235 CHEMBL358119 ZINC01537634 1 MDKLDANGSSKEGFGSVEKVVLLTFVSAVILMAVLGNLLVMVAVCRDRQLRKIKTNYFIVSLAFADLLVSVLVMPFGAIELVQDVWIYGEMFCLVRTSLDVLLTTASIFHLCCISLDRYYAICCQPLVYRNKMTPLRVAVLLAGCWAIPVLISFLPIMQGWNNIGITDLERTSKPRLGQDLHVIEKRKFHQNSNSTYCIFMVNKPYAITCSVVAFYIPFLLMVLAYWRIYVTAKEHAHQIQMLQRAGAPAEGRPPSADQHSTHRMRTETKAAKTLCVIMGCFCLCWAPFFVTNVVDPFADYSVPGQVWTAFLWLGYINSGLNPFLYAFLNKSFRRAFLIILCCDDERYRRPCVAGQTVPCSTTTVNGSTHVLRDAVECGGQWESQCHPPATSPLVAAQPSDT 5-hydroxytryptamine receptor 4 Q6Q253_PIG Q6Q253 50562058 CCCCN1CCC(COC(=O)c2c3OCCCCn3c3ccccc23)CC1 InChI=1S/C23H32N2O3/c1-2-3-12-24-14-10-18(11-15-24)17-28-23(26)21-19-8-4-5-9-20(19)25-13-6-7-16-27-22(21)25/h4-5,8-9,18H,2-3,6-7,10-17H2,1H3 FBUHEYRHDPWJEF-UHFFFAOYSA-N 50421362 CHEMBL143862 5-hydroxytryptamine receptor 4 Sus scrofa 0.199526 ChEMBL 10.1016/S0960-894X(01)80176-1 10.7270/Q25T3MSB n/a n/a http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50421362 http://www.bindingdb.org/jsp/dbsearch/PrimarySearch_ki.jsp?energyterm=kJ/mole&tag=pol&polymerid=50001336&target=5-hydroxytryptamine+receptor+4&column=ki&startPg=0&Increment=50&submit=Search http://www.bindingdb.org/jsp/dbsearch/PrimarySearch_ki.jsp?energyterm=kJ/mole&tag=r21&monomerid=50421362&enzyme=5-hydroxytryptamine+receptor+4&column=ki&startPg=0&Increment=50&submit=Search 10691444 164150237 CHEMBL143862 ZINC13744381 1 MDKLDANGSSKEGFGSVEKVVLLTFVSAVILMAVLGNLLVMVAVCRDRQLRKIKTNYFIVSLAFADLLVSVLVMPFGAIELVQDVWIYGEMFCLVRTSLDVLLTTASIFHLCCISLDRYYAICCQPLVYRNKMTPLRVAVLLAGCWAIPVLISFLPIMQGWNNIGITDLERTSKPRLGQDLHVIEKRKFHQNSNSTYCIFMVNKPYAITCSVVAFYIPFLLMVLAYWRIYVTAKEHAHQIQMLQRAGAPAEGRPPSADQHSTHRMRTETKAAKTLCVIMGCFCLCWAPFFVTNVVDPFADYSVPGQVWTAFLWLGYINSGLNPFLYAFLNKSFRRAFLIILCCDDERYRRPCVAGQTVPCSTTTVNGSTHVLRDAVECGGQWESQCHPPATSPLVAAQPSDT 5-hydroxytryptamine receptor 4 Q6Q253_PIG Q6Q253 50562059 CCCCN1CCC(COC(=O)c2c3OCCn3c3ccccc23)CC1 InChI=1S/C21H28N2O3/c1-2-3-10-22-11-8-16(9-12-22)15-26-21(24)19-17-6-4-5-7-18(17)23-13-14-25-20(19)23/h4-7,16H,2-3,8-15H2,1H3 PDKWAHWPUBNFCD-UHFFFAOYSA-N 50421359 CHEMBL145075 5-hydroxytryptamine receptor 4 Sus scrofa 0.079433 ChEMBL 10.1016/S0960-894X(01)80176-1 10.7270/Q25T3MSB n/a n/a http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50421359 http://www.bindingdb.org/jsp/dbsearch/PrimarySearch_ki.jsp?energyterm=kJ/mole&tag=pol&polymerid=50001336&target=5-hydroxytryptamine+receptor+4&column=ki&startPg=0&Increment=50&submit=Search http://www.bindingdb.org/jsp/dbsearch/PrimarySearch_ki.jsp?energyterm=kJ/mole&tag=r21&monomerid=50421359&enzyme=5-hydroxytryptamine+receptor+4&column=ki&startPg=0&Increment=50&submit=Search 10736989 164150234 CHEMBL145075 ZINC01537635 1 MDKLDANGSSKEGFGSVEKVVLLTFVSAVILMAVLGNLLVMVAVCRDRQLRKIKTNYFIVSLAFADLLVSVLVMPFGAIELVQDVWIYGEMFCLVRTSLDVLLTTASIFHLCCISLDRYYAICCQPLVYRNKMTPLRVAVLLAGCWAIPVLISFLPIMQGWNNIGITDLERTSKPRLGQDLHVIEKRKFHQNSNSTYCIFMVNKPYAITCSVVAFYIPFLLMVLAYWRIYVTAKEHAHQIQMLQRAGAPAEGRPPSADQHSTHRMRTETKAAKTLCVIMGCFCLCWAPFFVTNVVDPFADYSVPGQVWTAFLWLGYINSGLNPFLYAFLNKSFRRAFLIILCCDDERYRRPCVAGQTVPCSTTTVNGSTHVLRDAVECGGQWESQCHPPATSPLVAAQPSDT 5-hydroxytryptamine receptor 4 Q6Q253_PIG Q6Q253 50562060 CCCCN1CCC(COC(=O)c2c[nH]c3ccccc23)CC1 InChI=1S/C19H26N2O2/c1-2-3-10-21-11-8-15(9-12-21)14-23-19(22)17-13-20-18-7-5-4-6-16(17)18/h4-7,13,15,20H,2-3,8-12,14H2,1H3 DEWPDCSLWTYBEZ-UHFFFAOYSA-N 50421361 CHEMBL143426 5-hydroxytryptamine receptor 4 Sus scrofa 2.5 ChEMBL 10.1016/S0960-894X(01)80176-1 10.7270/Q25T3MSB n/a n/a http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=50421361 http://www.bindingdb.org/jsp/dbsearch/PrimarySearch_ki.jsp?energyterm=kJ/mole&tag=pol&polymerid=50001336&target=5-hydroxytryptamine+receptor+4&column=ki&startPg=0&Increment=50&submit=Search http://www.bindingdb.org/jsp/dbsearch/PrimarySearch_ki.jsp?energyterm=kJ/mole&tag=r21&monomerid=50421361&enzyme=5-hydroxytryptamine+receptor+4&column=ki&startPg=0&Increment=50&submit=Search 10852772 164150236 CHEMBL143426 ZINC13744373 1 MDKLDANGSSKEGFGSVEKVVLLTFVSAVILMAVLGNLLVMVAVCRDRQLRKIKTNYFIVSLAFADLLVSVLVMPFGAIELVQDVWIYGEMFCLVRTSLDVLLTTASIFHLCCISLDRYYAICCQPLVYRNKMTPLRVAVLLAGCWAIPVLISFLPIMQGWNNIGITDLERTSKPRLGQDLHVIEKRKFHQNSNSTYCIFMVNKPYAITCSVVAFYIPFLLMVLAYWRIYVTAKEHAHQIQMLQRAGAPAEGRPPSADQHSTHRMRTETKAAKTLCVIMGCFCLCWAPFFVTNVVDPFADYSVPGQVWTAFLWLGYINSGLNPFLYAFLNKSFRRAFLIILCCDDERYRRPCVAGQTVPCSTTTVNGSTHVLRDAVECGGQWESQCHPPATSPLVAAQPSDT 5-hydroxytryptamine receptor 4 Q6Q253_PIG Q6Q253 50562061 CCCCN1CCC(COC(=O)c2cc(Cl)c(N)c3OCCOc23)CC1 InChI=1S/C19H27ClN2O4/c1-2-3-6-22-7-4-13(5-8-22)12-26-19(23)14-11-15(20)16(21)18-17(14)24-9-10-25-18/h11,13H,2-10,12,21H2,1H3 AOOSJYIINXVNHV-UHFFFAOYSA-N 82505 CAS_121881::NSC_121881::SB204070 5-hydroxytryptamine receptor 4 Sus scrofa 0.125893 ChEMBL 10.1016/S0960-894X(01)80176-1 10.7270/Q25T3MSB n/a n/a http://www.bindingdb.org/bind/chemsearch/marvin/MolStructure.jsp?monomerid=82505 http://www.bindingdb.org/jsp/dbsearch/PrimarySearch_ki.jsp?energyterm=kJ/mole&tag=pol&polymerid=50001336&target=5-hydroxytryptamine+receptor+4&column=ki&startPg=0&Increment=50&submit=Search http://www.bindingdb.org/jsp/dbsearch/PrimarySearch_ki.jsp?energyterm=kJ/mole&tag=r21&monomerid=82505&enzyme=5-hydroxytryptamine+receptor+4&column=ki&startPg=0&Increment=50&submit=Search 121881 136350476 256 ZINC01536586 1 MDKLDANGSSKEGFGSVEKVVLLTFVSAVILMAVLGNLLVMVAVCRDRQLRKIKTNYFIVSLAFADLLVSVLVMPFGAIELVQDVWIYGEMFCLVRTSLDVLLTTASIFHLCCISLDRYYAICCQPLVYRNKMTPLRVAVLLAGCWAIPVLISFLPIMQGWNNIGITDLERTSKPRLGQDLHVIEKRKFHQNSNSTYCIFMVNKPYAITCSVVAFYIPFLLMVLAYWRIYVTAKEHAHQIQMLQRAGAPAEGRPPSADQHSTHRMRTETKAAKTLCVIMGCFCLCWAPFFVTNVVDPFADYSVPGQVWTAFLWLGYINSGLNPFLYAFLNKSFRRAFLIILCCDDERYRRPCVAGQTVPCSTTTVNGSTHVLRDAVECGGQWESQCHPPATSPLVAAQPSDT 5-hydroxytryptamine receptor 4 Q6Q253_PIG Q6Q253