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| © wwPDB | ||
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
| O | OXYGEN ATOM |
| O16 | 3-(1,3-BENZOTHIAZOL-2-YL)-2-(1,4-DIOXO-1,2,3,4-TETRAHYDROPHTHALAZIN-6-YL)-5-[(E)-2-PHENYLVINYL]-3H-TETRAAZOL-2-IUM |
| O1C | 2ALPHA-(3-HYDROXYPROPYL)-1ALPHA,25-DIHYDROXYVITAMIN D3 |
| O2 | OXYGEN MOLECULE |
| O2C | 3'-DEOXY-CYTIDINE-5'-MONOPHOSPHATE |
| O4M | MANGANESE TETRAHYDRATE ION |
| OAA | OXALOACETATE ION |
| OAC | TRANS-O-HYDROXY-ALPHA-METHYL CINNAMATE |
| OAD | 2'-O-ACETYL ADENOSINE-5-DIPHOSPHORIBOSE |
| OAI | 6-(OXALYL-AMINO)-1H-INDOLE-5-CARBOXYLIC ACID |
| OAL | (1,8-DIHYDROXY-9,10-DIOXO-9,10-DIHYDRO-ANTHRACEN-2-YL)-ACETIC ACID |
| OAN | O-(2-ACETAMIDO-2-DEOXY D-GLUCOPYRANOSYLIDENE) AMINO-N-PHENYLCARBAMATE |
| OAP | 4-(S)-[(1-OXO-7-PHENYLHEPTYL)AMINO]-5-[4-(PHENYLMETHYL)PHENYLTHIO]PENTANOIC ACID |
| OAR | N-(4-AMINO-5-HYDROXY-PENTYL)-GUANIDINE |
| OAS | O-ACETYLSERINE |
| OBA | 2-(OXALYL-AMINO)-BENZOIC ACID |
| OBE | 3-(3-HYDROXY-BENZOYLOXY)-8-METHYL-8-AZA-BICYCLO[3.2.1]OCTANE-2-CARBOXYLIC ACID |
| OBI | 1,1'-(OXYDIMETHYLENE)BIS(4-FORMYLPYRIDINIUM)DIOXIME |
| OBN | OUABAIN |
| OBP | 2'-HYDROXY-1,1'-BIPHENYL-2-SULFINIC ACID |
| OBS | (Z)-N^6-[(4S,5R)-5-(2-CARBOXYETHYL)-4-(CARBOXYMETHYL)-1-HYDROXYDIHYDRO-2H-THIOPYRANIUM-3(4H)-YLIDENE]-L-LYSINE |
| OC1 | CALCIUM ION, 1 WATER COORDINATED |
| OC2 | CALCIUM ION, 2 WATERS COORDINATED |
| OC3 | CALCIUM ION, 3 WATERS COORDINATED |
| OC4 | CALCIUM ION, 4 WATERS COORDINATED |
| OC5 | CALCIUM ION, 5 WATERS COORDINATED |
| OC6 | CALCIUM ION, 6 WATERS COORDINATED |
| OC7 | CALCIUM ION, 7 WATERS COORDINATED |
| OC8 | CALCIUM ION, 8 WATERS COORDINATED |
| OC9 | OCTAN-1-OL |
| OCA | OCTANOIC ACID (CAPRYLIC ACID) |
| OCB | OCTANOYLCARNITINE |
| OCC | 2ALPHA-(3-HYDROXYPROPOXY)-1ALPHA,25-DIHYDROXYVITAMIN D3 |
| OCH | QUINOLIN-2(1H)-ONE |
| OCL | COBALT ION, 1 WATER COORDINATED |
| OCM | COBALT ION, 3 WATERS COORDINATED |
| OCN | COBALT ION, 2 WATERS COORDINATED |
| OCO | COBALT ION,6 WATERS COORDINATED |
| OCP | OCTYL-PHOSPHINIC ACID 1,2-BIS-OCTYLCARBAMOYLOXY-ETHYL ESTER |
| OCS | CYSTEINESULFONIC ACID |
| OCT | N-OCTANE |
| OCV | N6-[(1R)-2-{[(1R)-1-CARBOXY-2-METHYLPROPYL]OXY}-1-(MERCAPTOMETHYL)-2-OXOETHYL]-6-OXO-D-LYSINE |
| OCY | HYDROXYETHYLCYSTEINE |
| ODA | 9-AMINO-6,10-DIOXO-OCTAHYDRO-PYRIDAZINO[1,2-A][1,2]DIAZEPINE-1-CARBOXYLIC ACID |
| ODD | (10E,12Z)-OCTADECA-10,12-DIENOIC ACID |
| ODI | OCTANE-1,8-DIOL |
| ODP | 4-OXO-NICOTINAMIDE-ADENINE DINUCLEOTIDE PHOSPHATE |
| ODS | 4-METHYLPIPERAZIN-1-YL CARBONYL GROUP |
| ODT | (11E,13E,15Z)-OCTADECA-11,13,15-TRIENOIC ACID |
| OEC | OXYGEN EVOLVING SYSTEM |
| OES | N-OCTYL-2-HYDROXYETHYL SULFOXIDE |
| OET | ETHYL GROUP |
| OF1 | FERROUS ION, 1 WATER COORDINATED |
| OF2 | 2 FERRIC ION, 1 BRIDGING OXYGEN |
| OF3 | FERRIC ION, 1 WATER COORDINATED |
| OFL | O-TRIFLUOROMETHYLPHENYL ANTHRANILIC ACID |
| OFO | HYDROXY DIIRON-OXO MOIETY |
| OGA | N-OXALYOLGLYCINE |
| OGG | 2-(2-CARBAMOYLMETHOXY-ETHOXY)-ACETAMIDE |
| OH | HYDROXIDE ION |
| OHE | HYDROXYETHYL GROUP |
| OHH | 2-[3-({METHYL[1-(2-NAPHTHOYL)PIPERIDIN-4-YL]AMINO}CARBONYL)-2-NAPHTHYL]-1-(1-NAPHTHYL)-2-OXOETHYLPHOSPHONIC ACID |
| OHO | CYCLOHEXANE AMINOCARBOXYLIC ACID |
| OHP | (2-HYDROXYPHENYL)ACETIC ACID |
| OHS | O-(CARBOXYSULFANYL)-4-OXO-L-HOMOSERINE |
| OHT | 4-HYDROXYTAMOXIFEN |
| OI1 | 3-(4-HYDROXYBENZYL)-2-[1-({[2-(4-HYDROXYPHENYL)ETHYL]AMINO}CARBONYL)BUTYL]-4-OXO-3,6,11,11A-TETRAHYDRO-4H-PYRAZINO[1,2-B]ISOQUINOLIN-2-IUM-1-OLATE |
| OIC | OCTAHYDROINDOLE-2-CARBOXYLIC ACID |
| OIN | (1R,5S)-8-METHYL-8-AZABICYCLO[3.2.1]OCT-3-YL (2R)-3-HYDROXY-2-PHENYLPROPANOATE |
| OIP | 2'-DEOXY-INOSINIC ACID |
| OIR | N-(3-PHENYL-2-SULFANYLPROPANOYL)PHENYLALANYLALANINE |
| OIS | (S)-N-((2S,3R)-3-HYDROXY-4-(4-((E)-(HYDROXYIMINO)METHYL)-N-ISOBUTYLPHENYLSULFONAMIDO)-1-PHENYLBUTAN-2-YL)-3-METHYL-2-(3-((2-METHYLTHIAZOL-4-YL)METHYL)-2-OXOIMIDAZOLIDIN-1-YL)BUTANAMIDE |
| OKA | OKADAIC ACID |
| OLA | OLEIC ACID |
| OLE | 2-HYDROXY-4-METHYL-PENTANOIC ACID |
| OLI | OLEIC ACID |
| OLN | (S)-2-ACETAMIDO-5-UREIDOPENTANOIC ACID |
| OLO | OLOMOUCINE |
| OLP | 2-(2-HYDROXYETHYLAMINO)-6-(3-CHLOROANILINO)-9-ISOPROPYLPURINE |
| OLT | O-METHYL-L-THREONINE |
| OLU | 2-(6-HYDROXY-1,3-BENZOTHIAZOL-2-YL)-1,3-THIAZOL-4(5H)-ONE |
| OMB | OXYMETHYLENE BRIDGING GROUP |
| OMC | O2'-METHYLYCYTIDINE-5'-MONOPHOSPHATE |
| OMD | 2-(3,6-DIHYDROXYPHENYL)ACETIC ACID |
| OME | METHOXY GROUP |
| OMG | O2'-METHYLGUANOSINE-5'-MONOPHOSPHATE |
| OMN | 4-BROMO-3-(5'-CARBOXY-4'-CHLORO-2'-FLUOROPHENYL)-1-METHYL-5-TRIFLUOROMETHYL-PYRAZOL |
| OMO | MO(VI)(=O)(OH)2 CLUSTER |
| OMP | OROTIDINE-5'-MONOPHOSPHATE |
| OMT | S-DIOXYMETHIONINE |
| OMU | O2'-METHYLURIDINE 5'-MONOPHOSPHATE |
| ONA | 3'-O-[2-(METHYLAMINO)BENZOYL]ADENOSINE 5'-(TETRAHYDROGEN TRIPHOSPHATE) |
| ONE | 1-(BETA-D-RIBOFURANOSYL)-PYRIDIN-4-ONE-5'-PHOSPHATE |
| ONL | 5-OXO-L-NORLEUCINE |
| ONM | 3'-O-(N-METHYLANTHRANILOYL)-GUANOSINE-5'-TRIPHOSPHATE |
| ONO | 2-[2-({[4-(DIAMINOMETHYL)PHENYL]AMINO}CARBONYL)-6-METHOXYPYRIDIN-3-YL]-5-{[(1-FORMYL-2,2-DIMETHYLPROPYL)AMINO]CARBONYL}BENZOIC ACID |
| ONP | O-NITROPHENYL AMINOETHYLDIPHOSPHATE BERYLLIUM TRIFLUORIDE |
| OOA | 3-OXOOCTANOIC ACID |
| OPA | 2-(OXALYL-AMINO)-4,7-DIHYDRO-5H-THIENO[2,3-C]PYRAN-3-CARBOXYLIC ACID |
| OPB | 4-BUTYL-1-(4-HYDROXYPHENYL)-2-PHENYLPYRAZOLIDINE-3,5-DIONE |
| OPC | (7R,17E)-4-HYDROXY-N,N,N,7-TETRAMETHYL-7-[(8E)-OCTADEC-8-ENOYLOXY]-10-OXO-3,5,9-TRIOXA-4-PHOSPHAHEPTACOS-17-EN-1-AMINIUM 4-OXIDE |
| OPD | 9R,13R-12-OXOPHYTODIENOIC ACID |
| OPE | PHOSPHORIC ACID MONO-(2-AMINO-ETHYL) ESTER |
| OPG | OXIRANPSEUDOGLUCOSE |
| OPH | 2-HYDROXY-3-PHENYL-PROPIONIC ACID METHYL ESTER |
| OPM | O1-PENTYL-MANNOSE |
| OPN | {(2-AMINO-ETHYL)-[2-(2-OXO-1,2-DIHYDRO-[1,8]NAPHTHYRIDIN-3-YL)-ACETYL]-AMINO}-ACETIC ACID |
| OPP | 1-[PYRROL-1-YL-2,5-DIONE-METHOXYMETHYL]-PYRROLE-2,5-DIONE |
| OPQ | ((3S,4S)-4-((2S,3S)-2-(2-(NAPTHALEN-6-YL)ACETAMIDO)-3-METHYLPENTANAMIDO)-N-BUTYL-3-HYDROXY-6-METHYLHEPTANAMIDE) |
| OPR | C-(3-OXOPROPYL)ARGININE |
| OPS | 3-OXO-3-[(3-OXOPROPYL)SULFANYL]PROPANE-1-THIOLATE |
| OQB | 4-OXO-3-[(6-{[4-(QUINOXALIN-2-YLAMINO)-BENZOYLAMINO]-METHYL}-PYRIDINE-3-CARBONYL)-AMINO]-BUTYRIC ACID |
| OR5 | OPEN FORM OF RIBOFURANOSE-5'-PHOSPHATE |
| ORE | 4-(2,7-DIFLUORO-6-HYDROXY-3-OXO-3H-XANTHEN-9-YL)ISOPHTHALIC ACID |
| ORN | ORNITHINE |
| ORO | OROTIC ACID |
| ORP | 2-DEOXY-5-PHOSPHONO-RIBOSE |
| ORQ | N~5~-ACETYL-L-ORNITHINE |
| ORX | N~2~-({3-HYDROXY-2-METHYL-5-[(PHOSPHONOOXY)METHYL]PYRIDIN-4-YL}METHYL)-D-ORNITHINE |
| OS | OSMIUM ION |
| OS4 | OSMIUM 4+ ION |
| OSB | 2-SUCCINYLBENZOATE |
| OSC | (2R,3AS,6R,7AS)-N-(2-{1-[AMINO(IMINO)METHYL]-2,5-DIHYDRO-1H-PYRROL-3-YL}ETHYL)-6-HYDROXY-1-{N-[(2S)-2-HYDROXY-3-PHENYLPROPANOYL]PHENYLALANYL}OCTAHYDRO-1H-INDOLE-2-CARBOXAMIDE |
| OSE | O-SULFO-L-SERINE |
| OSM | 1-(OXIDOSULFANYL)METHANAMINE |
| OSS | 6-(HYDROXYETHYLDITHIO)-8-(AMINOMETHYLTHIO)OCTANOIC ACID |
| OST | METHYL (2Z)-3-METHOXY-2-{2-[(E)-2-PHENYLVINYL]PHENYL}ACRYLATE |
| OSU | N-OCTANOYLSUCROSE |
| OTA | 2-(OXALYL-AMINO)-4,5,6,7-TETRAHYDRO-THIENO[2,3-C]PYRIDINE-3-CARBOXYLIC ACID |
| OTB | TERTIARY-BUTOXYFORMIC ACID |
| OTE | 2-{2-[2-(2-OCTYLOXY-ETHOXY)-ETHOXYL]-ETHOXY}ETHANOL |
| OTG | ORTHO-TOLUOYLGLUCOSAMINE |
| OTP | (2E,6E,10E,14E,18E,22E,26E)-3,7,11,15,19,23,27,31-OCTAMETHYLDOTRIACONTA-2,6,10,14,18,22,26,30-OCTAENYL TRIHYDROGEN DIPHOSPHATE |
| OTR | 4-(2R-AMINO-1-HYDROXYETHYL)PHENOL |
| OTS | 4-(2S-AMINO-1-HYDROXYETHYL)PHENOL |
| OUT | CARBAMIC ACID |
| OVA | 3,4-DIHYDROXY-2-METHOXY-4-METHYL-3-[2-METHYL-3-(3-METHYL-BUT-2-ENYL) -OXIRANYL]-CYCLOHEXANONE |
| OX | BOUND OXYGEN |
| OX1 | [2'-CARBOXYLETHYL]-10-METHYL-ANTHRACENE ENDOPEROXIDE |
| OX2 | 2-(BETA-D-GLUCOPYRANOSYL)-5-METHYL-1,3,4-OXADIAZOLE |
| OXA | OXYDIMETHYLENE GROUP |
| OXC | OXONIC ACID |
| OXD | OXALIC ACID |
| OXE | ORTHO-XYLENE |
| OXG | 8-OXOGUANINE |
| OXI | OXOLINIC ACID |
| OXL | OXALATE ION |
| OXM | OXAMIC ACID |
| OXN | OXTOXYNOL-10 |
| OXO | OXO GROUP |
| OXP | 2-OXO-3-PENTENOIC ACID |
| OXQ | 4-HYDROXY-1,2,5-OXADIAZOLE-3-CARBOXYLIC ACID |
| OXR | 4-OXORETINOL |
| OXS | 2-OXALOSUCCINIC ACID |
| OXX | OXALYL-ASPARTYL ANHYDRIDE |
| OXY | OXYGEN MOLECULE |
| OXZ | TETRAHYDROOXAZINE |