(Å) Ref 1A52 Dimer Estradiol 2.8 [ 29 ] 1ERE Hexamer Estradiol 3.1 [ 30 ] 1ERR Dimer Raloxifene 2.6 [ 30 ] 3ERD Dimer Diethylstilbestrol 2.03 [ 31 ] 3ERT Monomer 4-Hydroxytamoxifen 1.9 [ 31 ] ... QKT Monomer Estradiol 2.2 [ 32 ] 1QKU Trimer Estradiol 3.2 [ 32 ] 1G50 Trimer Estradiol 2.9 [ 33 ] 1GWQ Dimer Raloxifene core 2.45 [ 34 ] 1GWR Dimer Estradiol 2.4 [ 34 ] 1L2I Dimer ( R,R )-5,11- cis -Diethyl-5,6,11,12-tetrahydrochrysene- 2,8-diol 1.95 [ 35 ] 1PCG Dimer Estradiol 2.7 [ 36 ] 1UOM Monomer 2-Phenyl-1-[4-(2-piperidin-1-yl-ethoxy)-phenyl]-1,2,3, 4-tetrahydroisoquinolin-6-ol 2.28 [ 37 ] 1R5K Trimer (2 E )-3-{4-[(1 E )-1,2-Diphenylbut-1-enyl]phenyl}acrylic acid 2.7 [ 38 ] 1SJ0 Monomer (2 S ,3 R )-2-(4-(2-(Piperidin-1-yl)ethoxy)phenyl)-2,3-dihydro-3-(4-hydroxyphenyl)benzo[b][1,4]oxathiin-6-ol 1.9 [ 39 ] 1XP1 Monomer (2 S ,3 R )-2-(4-{2-[(3 R ,4 R )-3,4-Dimethylpyrrolidin-1-yl]ethoxy}phenyl)-3-(4-hydroxyphenyl)-2,3-dihydro-1,4-benzoxathiin-6-ol 1.8 [ 40 ] 1XP6 Monomer (2 S ,3 R )-2-(4-{2-[(3 S ,4 S )-3,4-Dimethylpyrrolidin-1-yl]ethoxy}phenyl)-3-(4-hydroxyphenyl)-2,3-dihydro-1,4-benzoxathiin-6-ol 1.7 [ 40 ] 1XP9 Monomer (2 S ,3 R )-3-(4-Hydroxyphenyl)-2-(4-{[(2 S )-2-pyrrolidin-1-ylpropyl]oxy}phenyl)-2,3-dihydro-1,4-benzoxathiin-6-ol 1.8 [ 40 ] 1XPC Monomer (2 S ,3 R )-3-(4-Hydroxyphenyl)-2-(4-{[(2 R )-2-pyrrolidin-1-ylpropyl]oxy}phenyl)-2,3-dihydro-1,4-benzoxathiin-6-ol 1.6 [ 40 ] 1X7E Dimer [5-Hydroxy-2-(4-hydroxyphenyl)-1-benzofuran-7-yl]acetonitrile 2.8 [ 41 ] 1X7R Monomer Genistein 2 [ 42 ] 1XQC Tetramer (1 S )-1-{4-[(9a R )-Octahydro-2 H -pyrido[1,2-a]pyrazin-2-yl]phenyl}-2-phenyl-1,2,3,4-tetrahydroisoquinolin-6-ol 2.05 [ 43 ] 1YIM Monomer (2 R ,3 R ,4 S )-3-(4-Hydroxyphenyl)-4-methyl-2-[4-(2-pyrrolidin-1-ylethoxy)phenyl]chroman-6-ol 1.9 [ 44 ] 1YIN Monomer (2 R ,3 R ,4 S )-5-Fluoro-3-(4-hydroxyphenyl)-4-methyl-2-[4-(2-piperidin-1-ylethoxy)phenyl]chroman-6-ol 2.2 [ 44 ] 2AYR Monomer 6-(4-Methylsulfonyl-phenyl)-5-[4-(2-piperidin-1-ylethoxy)phenoxy]naphthalen-2-ol 1.9 [ 45 ] 2B23 Dimer 2.1 [ 46 ] 2BJ4 Dimer 4-Hydroxytamoxifen 2 [ 47 ] 1ZKY Dimer 4-[(1 S ,2 S ,5 S )-5-(Hydroxymethyl)-6,8,9-trimethyl-3-oxabicyclo[3.3.1]non-7-en-2-yl]phenol 2.25 [ 48 ] 2B1V Dimer 4-[(1 S ,2 S ,5 S )-5-(Hydroxymethyl)-8-methyl-3-oxabicyclo[3.3.1]non-7-en-2-yl]phenol 1.8 [ 48 ] 2B1Z Dimer 17-Methyl-17-α-dihydroequilenin 1.78 [ 49 ] 2FAI Dimer 4-[(1 S ,2 S ,5 S ,9 R )-5-(Hydroxymethyl)-8,9-dimethyl-3-oxabicyclo[3.3.1]non-7-en-2-yl]phenol 2.1 [ 48 ] 2I0J Tetramer (3a S ,4 R ,9b R )-4-(4-Hydroxyphenyl)-1,2,3,3a,4,9b-hexahydrocyclopenta[c]chromen-8-ol 2.9 [ 50 ] 2G44 Dimer 4-[(1 S ,2 R ,5 S )-4,4,8-Trimethyl-3-oxabicyclo[3.3.1]non-7-en-2-yl]phenol 2.65 - 2G5O Dimer (9α,13β,17β)-2-[(1 Z )-But-1-en-1-yl]estra-1,3,5(10)-triene-3,17-diol 2.3 - 2IOG Monomer N-[(1 R )-3-(4-Hydroxyphenyl)-1-methylpropyl]-2-[2-phenyl-6-(2-piperidin-1-ylethoxy)-1h-indol-3-yl]acetamide 1.6 [ 51 ] 2IOK Dimer N-[(1 R )-3-(4-Hydroxyphenyl)-1-methylpropyl]-2-(2-phenyl-1 H -indol-3-yl)acetamide 2.4 [ 51 ] 2JF9 Trimer 4-Hydroxytamoxifen 2.1 [ 52 ] 2JFA Dimer Raloxifene 2.55 [ 52 ] 2OCF Monomer Estradiol 2.95 [ 53 ] 2OUZ Monomer (5 R ,6 S )-6-Phenyl-5-[4-(2-pyrrolidin-1-ylethoxy)phenyl]-5,6,7,8-tetrahydronaphthalen-2-ol 2 [ 54 ] 2P15 Dimer (17β)-17-{( E )-2-[2-(Trifluoromethyl)phenyl]vinyl}estra-1(10),2,4-triene-3,17-diol 1.94 [ 55 ] 2POG Dimer (3a S ,4 R ,9b R )-4-(4-Hydroxyphenyl)-1,2,3,3a,4,9b-hexahydrocyclopenta[c]chromen-9-ol 1.84 [ 56 ] 2Q6J Dimer 4-[(Dimesitylboryl)(2,2,2-trifluoroethyl)amino]phenol 2.7 [ 57 ] 2Q70 Dimer (3a S ,4 R ,9b R )-2,2-Difluoro-4-(4-hydroxyphenyl)-1,2,3,3a,4,9b-hexahydrocyclopenta[c]chromen-8-ol 1.95 [ 58 ] 2QE4 Dimer (3a S ,4 R ,9b R )-4-(4-Hydroxyphenyl)-6-(methoxymethyl)-1,2,3,3a,4,9b-hexahydrocyclopenta[c]chromen-8-ol 2.4 [ 50 ] 2QA6 Dimer 4-(6-Hydroxy-1 H -indazol-3-yl)benzene-1,3-diol 2.6 [ 46 ] 2QA8 Dimer Genistein 1.85 [ 46 ] 2QAB Dimer 3-Ethyl-2-(4-hydroxyphenyl)-2 H -indazol-5- ol 1.89 [ 46 ] 2QGT Dimer (9β,11α,13α,14β,17α)-11-(methoxymethyl)estra-1(10),2,4-triene-3,17-diol 2.15 [ 46 ] 2QGW Dimer 3-Chloro-2-(4-hydroxyphenyl)-2 H -indazol-5-ol 2.39 [ 46 ] 2QH6 Dimer Diethyl (1 R ,2 S ,3 R ,4 S )-5,6-bis(4-hydroxyphenyl)-7-oxabicyclo[2.2.1]hept-5-ene-2,3-dicarboxylate 2.7 [ 46 ] 2QR9 Dimer Dimethyl (1 R ,4 S )-5,6-bis(4-hydroxyphenyl)-7-oxabicyclo[2.2.1]hepta-2,5-diene-2,3-dicarboxylate 2 [ 46 ] 2QSE Dimer 4-(2-Amino-1-methyl-1 H -imidazo[4,5-b]pyridin-6-yl)phenol 1.85 [ 46 ] 2QXM Dimer 2-Amino-1-methyl-6-phenylimidazo[4,5-b]pyrid 2.3 [ 46 ] 2QXS Dimer Raloxifene 1.7 [ 59 ] 2QZO Dimer 4-[1-Allyl-7-(trifluoromethyl)-1h-indazol- 3-yl]bezene-1,3-diol 1.72 [ 59 ] 2R6W Dimer [6-Hydroxy-2-(4-hydroxyphenyl)-1-benzothien-3-yl]{4-[2-(4-methylpiperidin-1-yl)ethoxy]phenyl}methanone 2 [ 60 ] 2R6Y Dimer [6-Hydroxy-2-(4-hydroxyphenyl)-1-benzothien-3-yl][4-(2-pyrrolidin-1-ylethoxy)phenyl]methanone 2 [ 60 ] 3DT3 Dimer 5-(4-Hydroxyphenoxy)-6-(3-hydroxyphenyl)- 7-methylnapthalen-2-ol 2.4 [ 61 ] 3HLV Dimer (9β,13α,16β)-3,16-Dihydroxyestra- 1,3,5(10)-trien-17-one 3 - 3HM1 Dimer (9β,13α)-3-Hydroxyestra-1,3,5(10)-trien-17-one 2.33 - 3L03 Dimer (14β,15α,16α,17α)-Estra-1,3,5(10)-triene-3,15,16,17-tetrol 1.9 - 3OS8 Tetramer 4-[1-Benzyl-7-(trifluoromethyl)-1 H -indazol-3-yl]benzene-1, 3-diol 2.03 [ 59 ] 3OS9 Tetramer 4-[1-Allyl-7-(trifluoromethyl)-1 H -indazol-3-yl]benzene-1,3-diol 2.3 [ 59 ] 3OSA Tetramer 4-[1-(3-Methylbut-2-en-1-yl)-7-(trifluoromethyl)-1 H -indazol-3-yl]benzene-1,3-diol 2.3 [ 59 ] 2YAT Monomer Estradiol-pyridinium tetraacetic acid 2.6 [ 62 ] 2YJA Monomer Estradiol 1.82 [ 63 ] 3Q95 Dimer Estriol 2.05 - 3Q97 Dimer 4,4’-[(1 Z )-1-(4-Ethoxyphenyl)but-1-ene-1,2-diyl]diphenol; 4,4’-[2-(4-Ethoxyphenyl)but-1-ene-1,1-diyl]diphenol 2.1 - 3UU7 Dimer 4,4’-Propane-2,2-diyldiphenol 2.2 [ 64 ] 3UUA Dimer 4,4’-(1,1,1,3,3,3-Hexafluoropropane-2,2-diyl)diphenol 2.05 [ 64 ] 3UUC Tetramer 4,4’-(2,2-Dichloroethene-1,1-diyl)diphenol 2.1 [ 64 ] 3UUD Dimer Estradiol 1.6 [ 64 ] 4DMA Dimer 2’-Bromo-6’-(furan-3-yl)-4’-(hydroxymethyl)biphenyl-4-ol 2.3 [ 65 ] 4IU7 Dimer 4-[2-Ethyl-7-(trifluoromethyl)-2 H -indazol-3-yl]benzene-1, 3-diol 2.29 [ 66 ] 4IUI Dimer 4-[1-Butyl-7-(trifluoromethyl)-1 H -indazol-3-yl]benzene-1, 3-diol 2.3 [ 66 ] 4IV2 Dimer 4-[1-(2-Methylpropyl)-7-(trifluoromethyl)-1 H -indazol-3-yl]benzene-1,3-diol 2.14 [ 66 ] 4IV4 Dimer 4-[2-(2-Methylpropyl)-7-(trifluoromethyl)- 2h-indazol-3-yl]benzene-1,3-diol 2.3 [ 66 ] 4IVW Dimer 4-[2-Benzyl-7-(trifluoromethyl)-2 H -indazol-3-yl]benzene-1,3-diol 2.06 [ 66 ] 4IVY Dimer 4-[1-(But-3-en-1-yl)-7-(trifluoromethyl)-1 H -indazol-3-yl]benzene-1,3-diol 1.95 [ 66 ] 4IW6 Dimer 4-[2-(But-3-en-1-yl)-7-(trifluoromethyl)-2 H -indazol-3-yl]benzene-1,3-diol 1.98 [ 66 ] 4IW8 Dimer 4-[1-(3-Methylbut-2-en-1-yl)-7-(trifluoromethyl)-1 H -indazol-3-yl]benzene-1,3-diol 2.04 [ 66 ] 4IWC Dimer 4,4’-Thiene-2,5-diylbis(3-methylphenol) 2.24 [ 66 ] 4IWF Dimer 2-Chloro-3’-fluoro-3-[( E )-(hydroxyimino)methyl]biphenyl- 4,4’-diol 1.93 [ 66 ] ijerph-11-08709-t002_Table 2 Table 2 Crystal structures of ERβ ligand binding domain bound with ligands in PDB.