1 PIA [(4z)-2-[(1s)-1-aminoethyl]-4-(4-hydroxybenzylidene)-5-oxo-4,5-dihydro-1h-imidazol-1-yl]acetic acid 1.000 2 XYG [(4z)-2-[(1z)-ethanimidoyl]-4-(4-hydroxybenzylidene)-5-oxo-4,5-dihydro-1h-imidazol-1-yl]acetic acid 1.000 3 CCY 2-(1-amino-2-mercapto-ethyl)-5-(4-hydroxy-benzyl)-3-(ethanoyl)-3,5-dihydro-imidazol-4-one 0.955 4 GYC [(4z)-2-[(1r)-1-amino-2-mercaptoethyl]-4-(4-hydroxybenzylidene)-5-oxo-4,5-dihydro-1h-imidazol-1-yl]acetic acid 0.955 5 GYS [(4z)-2-(1-amino-2-hydroxyethyl)-4-(4-hydroxybenzylidene)-5-oxo-4,5-dihydro-1h-imidazol-1-yl]acetic acid 0.955 6 OHD {(4z)-2-[(1s)-1-aminoethyl]-4-[(3-chloro-4-hydroxyphenyl)methylidene]-5-oxo-4,5-dihydro-1h-imidazol-1-yl}acetic acid 0.955 7 CR2 {(4z)-2-(aminomethyl)-4-[(4-hydroxyphenyl)methylidene]-5-oxo-4,5-dihydro-1h-imidazol-1-yl}acetic acid 0.952 8 X9Q {(2s)-2-[(1s)-1-aminoethyl]-4-benzyl-5-oxo-2,5-dihydro-1h-imidazol-1-yl}acetic acid 0.952 9 CJO [(2r,4r)-2-[(1r,2r)-1-amino-2-hydroxypropyl]-4-(4-hydroxybenzyl)-5-oxoimidazolidin-1-yl]acetic acid 0.913 10 CRO {2-[(1r,2r)-1-amino-2-hydroxypropyl]-4-(4-hydroxybenzylidene)-5-oxo-4,5-dihydro-1h-imidazol-1-yl}acetic acid 0.913 11 KZ4 {(4z)-2-[(1r)-1-amino-2-sulfanylethyl]-4-[(3-bromo-4-hydroxyphenyl)methylidene]-5-oxo-4,5-dihydro-1h-imidazol-1-yl}acetic acid 0.913 12 KZ7 {(4z)-2-[(1r)-1-amino-2-sulfanylethyl]-4-[(3-chloro-4-hydroxyphenyl)methylidene]-5-oxo-4,5-dihydro-1h-imidazol-1-yl}acetic acid 0.913 13 KZG {(4z)-2-[(1r)-1-amino-2-sulfanylethyl]-4-[(4-hydroxy-3-iodophenyl)methylidene]-5-oxo-4,5-dihydro-1h-imidazol-1-yl}aceti C acid 0.913 14 KZV {(4z)-2-[(1r)-1-amino-2-sulfanylethyl]-4-[(3-fluoro-4-hydroxyphenyl)methylidene]-5-oxo-4,5-dihydro-1h-imidazol-1-yl}ace tic acid 0.913 15 KZY {(4z)-2-[(1r)-1-amino-2-sulfanylethyl]-4-[(4-hydroxy-3-methylphenyl)methylidene]-5-oxo-4,5-dihydro-1h-imidazol-1-yl}acetic acid 0.913 16 JBY (2s)-2-{(4z)-2-(aminomethyl)-4-[(4-hydroxyphenyl)methylidene]-5-oxo-4,5-dihydro-1h-imidazol-1-yl}propanoic acid 0.909 17 WCR [(2r,4z)-2-(aminomethyl)-2-hydroxy-4-(4-hydroxybenzylidene)-5-oxoimidazolidin-1-yl]acetic acid 0.909 18 4NT [(4z)-2-[(1r,2r)-1-amino-2-hydroxypropyl]-4-(3-chloro-4-hydroxybenzylidene)-5-oxo-4,5-dihydro-1h-imidazol-1-yl]acetic acid 0.875 19 B2C {(4z)-2-[(1r,2r)-1-amino-2-hydroxypropyl]-4-[(3-bromo-4-hydroxyphenyl)methylidene]-5-oxo-4,5-dihydro-1h-imidazol-1-yl}acetic acid 0.875 20 CH6 {(4z)-2-[(1s)-1-amino-3-(methylsulfanyl)propyl]-4-[(4-hydroxyphenyl)methylidene]-5-oxo-4,5-dihydro-1h-imidazol-1-yl}acetic acid 0.875 21 CZO [(2r,4s)-2-[(1s,2r)-1-amino-2-hydroxypropyl]-2-hydroxy-4-(4-hydroxybenzyl)-5-oxoimidazolidin-1-yl]acetic acid 0.875 22 DYG (3s)-3-amino-3-[(4z)-1-(carboxymethyl)-4-[(4-hydroxyphenyl)methylidene]-5-oxo-imidazol-2-yl]propanoic acid 0.875 23 I1C {(4z)-2-[(1r,2r)-1-amino-2-hydroxypropyl]-4-[(4-hydroxy-3-iodophenyl)methylidene]-5-oxo-4,5-dihydro-1h-imidazol-1-yl}acetic acid 0.875 24 KXV {(4z)-2-[(1r)-1-amino-2-sulfanylethyl]-4-[(4-hydroxy-3-methoxyphenyl)methylidene]-5-oxo-4,5-dihydro-1h-imidazol-1-yl}ac etic acid 0.875 25 KY4 {(4z)-2-[(1r)-1-amino-2-sulfanylethyl]-4-[(2,3-difluoro-4-hydroxyphenyl)methylidene]-5-oxo-4,5-dihydro-1h-imidazol-1-yl}acetic acid 0.875 26 MFC 5-[1-(3-fluoro-4-hydroxy-phenyl)-meth-(z)-ylidene]-3,5-dihydro-imidazol-4-one 0.875 27 MFV {(4z)-2-[(1r,2r)-1-amino-2-hydroxypropyl]-4-[(4-hydroxy-3-methylphenyl)methylidene]-5-oxo-4,5-dihydro-1h-imidazol-1-yl}acetic acid 0.875 28 NRP {4-[(4-hydroxyphenyl)methylidene]-2-[(1e)-3-methylbutanimidoyl]-5-oxo-4,5-dihydro-1h-imidazol-1-yl}acetic acid 0.875 29 NRQ {(4z)-4-(4-hydroxybenzylidene)-2-[3-(methylthio)propanimidoyl]-5-oxo-4,5-dihydro-1h-imidazol-1-yl}acetic acid 0.875 30 NYG [(4z)-2-[(1s)-1,3-diamino-3-oxopropyl]-4-(4-hydroxybenzylidene)-5-oxo-4,5-dihydro-1h-imidazol-1-yl]acetic acid 0.875 31 QYX 2-[4-[(4-hydroxyphenyl)methyl]-2-(3-methylsulfanylpropanimidoyl)-5-oxidanylidene-imidazol-1-ium-1-yl]ethanoic acid 0.875 32 VUB 2-[4-[(4-hydroxyphenyl)methyl]-2-(3-methylbutanimidoyl)-5-oxidanyl-imidazol-1-yl]ethanoic acid 0.875 33 VYA 2-[(4~{z})-2-[(1~{S})-1-azanyl-3-methyl-butyl]-4-[(4-hydroxyphenyl)methylidene]-5-oxidanylidene-imidazol-1-yl]ethanoic acid 0.875 34 C12 2-(1-amino-2-hydroxypropyl)-4-(4-hydroxybenzyl)-1-(2-oxoethyl)-1h-imidazol-5-olate 0.870 35 4NU {(4z)-2-[(1r,2r)-1-amino-2-hydroxypropyl]-4-[(3,5-dichloro-4-oxocyclohexa-2,5-dien-1-yl)methylidene]-5-oxo-4,5-dihydro-1h-imidazol-1-yl}acetic acid 0.840 36 BJO (4z)-4-amino-4-{1-(carboxymethyl)-5-oxo-4-[(4-oxocyclohexa-2,5-dien-1-ylidene)methyl]-1,5-dihydro-2h-imidazol-2-ylidene}butanoic acid 0.840 37 CR7 [(4z)-2-[(1s)-1,5-diaminopentyl]-4-(4-hydroxybenzylidene)-5-oxo-4,5-dihydro-1h-imidazol-1-yl]acetic acid 0.840 38 CRQ [2-(3-carbamoyl-1-imino-propyl)-4-(4-hydroxy-benzylidene)-5-oxo-4,5-dihydro-imidazol-1-yl]-acetic acid 0.840 39 CRU 4-[(4z)-1-(carboxymethyl)-4-(4-hydroxybenzylidene)-5-oxo-4,5-dihydro-1h-imidazol-2-yl]-4-iminobutanoic acid 0.840 40 EYG {(2r,4z)-2-[(1r)-1-amino-3-(methylsulfanyl)propyl]-2-hydroxy-4-[(4-hydroxyphenyl)methylidene]-5-oxoimidazolidin-1-yl}acetic acid 0.840 41 KY7 {(4z)-2-[(1s)-1-amino-2-sulfanylethyl]-4-[(4-hydroxy-3-nitrophenyl)methylidene]-5-oxo-4,5-dihydro-1h-imidazol-1-yl}acetic acid 0.840 42 KZ1 {(4z)-2-[(1r)-1-amino-2-sulfanylethyl]-5-oxo-4-[(2,3,5-trifluoro-4-hydroxyphenyl)methylidene]-4,5-dihydro-1h-imidazol-1-yl}acetic acid 0.840 43 MHY {(4z)-2-[(1r,2r)-1-amino-2-hydroxypropyl]-4-[(3,5-difluoro-4-hydroxyphenyl)methylidene]-5-oxo-4,5-dihydro-1h-imidazol-1-yl}acetic acid 0.840 44 MJ1 {(4z)-2-[(1r,2r)-1-amino-2-hydroxypropyl]-4-[(2,3-difluoro-4-hydroxyphenyl)methylidene]-5-oxo-4,5-dihydro-1h-imidazol-1-yl}acetic acid 0.840 45 QCD {(4z)-2-[(1r,2r)-1-amino-2-hydroxypropyl]-4-[(4-hydroxy-3-methoxyphenyl)methylidene]-5-oxo-4,5-dihydro-1h-imidazol-1-yl }acetic acid 0.840 46 QYG {(4e)-2-[(1s)-1,4-diamino-4-oxobutyl]-4-[(4-hydroxyphenyl)methylidene]-5-oxo-4,5-dihydro-1h-imidazol-1-yl}acetic acid 0.840 47 CQ2 {(4z)-4-(4-aminobenzylidene)-2-[(1r,2r)-1-amino-2-hydroxypropyl]-5-oxo-4,5-dihydro-1h-imidazol-1-yl}acetic acid 0.833 48 5SQ 2-[2-[(1s)-1-azanyl-2-(1h-imidazol-4-yl)ethyl]-4-[(4-hydroxyphenyl)methylidene]-5-oxidanylidene-imidazol-1-yl]ethanoic acid 0.808 49 7R0 2-[(4e)-2-[(1s)-1-azanyl-2-(1h-imidazol-4-yl)ethyl]-4-[(4-hydroxyphenyl)methylidene]-5-oxidanylidene-imidazol-1-yl]ethanoic acid 0.808 50 CR8 2-[1-amino-2-(1h-imidazol-5-yl)ethyl]-1-(carboxymethyl)-4-[(4-oxocyclohexa-2,5-dien-1-ylidene)methyl]-1h-imidazol-5-olate 0.808 51 QC4 {(4z)-2-[(1r,2r)-1-amino-2-hydroxypropyl]-5-oxo-4-[(2,3,5-trifluoro-4-hydroxyphenyl)methylidene]-4,5-dihydro-1h-imidazol-1-yl}acetic acid 0.808 52 QCA {(4z)-2-[(1r,2r)-1-amino-2-hydroxypropyl]-4-[(4-hydroxy-3-nitrophenyl)methylidene]-5-oxo-4,5-dihydro-1h-imidazol-1-yl}acetic acid 0.808 53 M3V {(4z)-2-[(1r,2r)-1-amino-2-hydroxypropyl]-4-[(4-cyanophenyl)methylidene]-5-oxo-4,5-dihydro-1h-imidazol-1-yl}acetic acid 0.800 54 QFG {(4e)-2-[(1e)-4-amino-4-oxobutanimidoyl]-4-benzylidene-5-oxo-4,5-dihydro-1h-imidazol-1-yl}acetic acid 0.800 55 LKE 2-[(4~{z})-2-(aminomethyl)-4-[(4-azidophenyl)methylidene]-5-oxidanylidene-imidazol-1-yl]ethanoic acid 0.792 56 X1B {(4z)-2-[(1s)-1-amino-2-(1-methyl-1h-imidazol-5-yl)ethyl]-4-[(4-hydroxyphenyl)methylidene]-5-oxo-4,5-dihydro-1h-imidazol-1-yl}acetaldehyde 0.778 57 7R6 2-[(4e)-4-[(4-hydroxyphenyl)methylidene]-2-[(E)-2-(1h-imidazol-4-yl)ethenyl]-5-oxidanylidene-imidazol-1-yl]ethanoic acid 0.769 58 CIV 2-[2-[(1~{S})-1,5-bis(azanyl)pentyl]-4-[(4-hydroxyphenyl)methyl]-5-oxidanylidene-imidazol-1-yl]ethanamide 0.769 59 CQ1 [(4z)-2-[(1r,2r)-1-amino-2-hydroxypropyl]-4-(4-azidobenzylidene)-5-oxo-4,5-dihydro-1h-imidazol-1-yl]acetic acid 0.769 60 GMO {(4z)-2-[(1r,2r)-1-amino-2-hydroxypropyl]-4-[(4-nitrophenyl)methylidene]-5-oxo-4,5-dihydro-1h-imidazol-1-yl}acetic acid 0.769 61 IEY {5-hydroxy-4-(4-hydroxybenzyl)-2-[(E)-2-(1h-imidazol-4-yl)ethenyl]-1h-imidazol-1-yl}acetic acid 0.769 62 RC7 2-[(4z)-4-[(4-hydroxyphenyl)methylidene]-2-[(E)-2-(1h-imidazol-4-yl)ethenyl]-5-oxidanylidene-imidazol-1-yl]ethanoic acid 0.769 63 CRK 4-{(z)-[2-[3-(methylsulfanyl)propanoyl]-5-oxo-1-(2-oxoethyl)-1,5-dihydro-4h-imidazol-4-ylidene]methyl}benzenolate 0.760 64 MCQ {(4s)-2-[(1r)-1-amino-3-(methylsulfanyl)propyl]-4-[(S)-[(2-hydroxyethyl)sulfanyl](4-hydroxyphenyl)methyl]-5-oxo-4,5-dihydro-1h-imidazol-1-yl}acetic acid 0.750 65 SWG 2-[(4z)-2-[(1r)-1-amino-2-hydroxy-ethyl]-4-(1h-indol-3-ylmethylidene)-5-oxo-imidazol-1-yl]ethanoic acid 0.731 66 IO8 2-[2-(aminomethyl)-4-(1h-indol-3-ylmethyl)-5-oxidanylidene-4h-imidazol-1-yl]ethanoic acid 0.720 67 B2H Chromophore (thr, trp, gly) 0.704 68 CRF [(4z)-2-[(1r,2r)-1-amino-2-hydroxypropyl]-4-(1h-indol-3-ylmethylidene)-5-oxo-4,5-dihydro-1h-imidazol-1-yl]acetic acid 0.704