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Protein Structures and Oligomeric States

Enter a protein name, UniProt accession or PDB ID. Name searches ask you to confirm the protein identity before related structures are queried.

Current Protein Identity：P02753 New Search
23PDB entries
27Biological assembly
32chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification Different assembly state Different ligand/ion Different experimental conditions Different structure-quality metrics

Difference tags compare only the current result set; every original PDB and assembly record remains separate.

Related-Structure Differences

Each row represents one biological assembly in one PDB entry; multiple monomers of the same protein are listed separately.

PDB Entry Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Experimental Method Experimental Conditions Structure Quality
1BRP CRYSTAL STRUCTURE OF THE TRIGONAL FORM OF HUMAN PLASMA RETINOL-BINDING PROTEIN AT 2.5 ANGSTROMS RESOLUTION Deposited 1992-07-27 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 17–198（182 aa）
Not recorded RTL RETINOL × 1 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.50 Å
1BRQ CRYSTAL STRUCTURE OF THE TRIGONAL FORM OF HUMAN PLASMA RETINOL-BINDING PROTEIN AT 2.5 ANGSTROMS RESOLUTION Deposited 1992-07-27 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 17–198（182 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.50 Å
1JYD Crystal Structure of Recombinant Human Serum Retinol-Binding Protein at 1.7 A Resolution Deposited 2001-09-12 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 17–198（182 aa）
Not recorded GOL GLYCEROL × 6 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.8；289 K；Sodium cacodylate, sodium chloride, pH 6.8, VAPOR DIFFUSION, HANGING DROP, temperature 289K
Resolution 1.70 Å R-free 0.270
1JYJ Crystal Structure of a Double Variant (W67L/W91H) of Recombinant Human Serum Retinol-binding Protein at 2.0 A Resolution Deposited 2001-09-12 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 17–198（182 aa）
Mutation：W67L, W91H GOL GLYCEROL × 5 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 9.1；289 K；Sodium Chloride, Tris/HCl buffer, beta-octyl-glucoside, pH 9.1, VAPOR DIFFUSION, HANGING DROP, temperature 289K
Resolution 2.00 Å R-free 0.229
1QAB The structure of human retinol binding protein with its carrier protein transthyretin reveals interaction with the carboxy terminus of RBP Deposited 1999-02-03 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 24–201（178 aa）
Chain F 24–201（178 aa）
Not recorded RTL RETINOL × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；293 K；pH 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 3.20 Å R-free 0.403
1RBP CRYSTALLOGRAPHIC REFINEMENT OF HUMAN SERUM RETINOL BINDING PROTEIN AT 2 ANGSTROMS RESOLUTION Deposited 1990-04-02 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 17–198（182 aa）
Not recorded RTL RETINOL × 1 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.00 Å
1RLB RETINOL BINDING PROTEIN COMPLEXED WITH TRANSTHYRETIN Deposited 1995-02-20 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 17–190（174 aa）
Chain F 17–190（174 aa）
Not recorded REA RETINOIC ACID × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 3.10 Å
2WQ9 Crystal Structure of RBP4 bound to Oleic Acid Deposited 2009-08-14 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 19–192（174 aa） Fragment：RESIDUES 19-192
Not recorded CL CHLORIDE ION × 5 OLA OLEIC ACID × 1 GOL GLYCEROL × 3 X-RAY DIFFRACTION
X-ray crystallization conditions 3.5 TO 4.2 M NACL, 1M HEPES PH 7.2
Resolution 1.65 Å R-free 0.219
2WQA Complex of TTR and RBP4 and Oleic Acid Deposited 2009-08-14 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 19–194（176 aa）
Chain F 19–194（176 aa）
Not recorded SO4 SULFATE ION × 11 OLA OLEIC ACID × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.85 Å R-free 0.253
2WR6 Structure of the complex of RBP4 with linoleic acid Deposited 2009-08-29 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 19–192（174 aa） Fragment：RESIDUES 19-192
Not recorded CL CHLORIDE ION × 1 ODT (11E,13E,15Z)-OCTADECA-11,13,15-TRIENOIC ACID × 1 X-RAY DIFFRACTION
X-ray crystallization conditions 3.5-4.2M NACL, 0.1M HEPES, PH 7.2
Resolution 1.80 Å R-free 0.227
3BSZ Crystal structure of the transthyretin-retinol binding protein-Fab complex Deposited 2007-12-27 Assembly 1 Protein heterocomplex Heteromer；Protein × 10 PDB declaration: decameric（10） Consistent with protein count
Chain E 19–194（176 aa）
Chain F 19–194（176 aa）
Not recorded RTL RETINOL × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5；295 K；2.35M ammonium phosphate, 10mM sodium citrate, 10mM beta-mercaptoethanol, pH 5.0, VAPOR DIFFUSION, SITTING DROP, temperature 295K
Resolution 3.38 Å R-free 0.312
3FMZ Crystal Structure of Retinol-Binding Protein 4 (RBP4) in complex with non-retinoid ligand Deposited 2008-12-22 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 19–201（183 aa）
Not recorded 2T1 2-[({4-[2-(trifluoromethyl)phenyl]piperidin-1-yl}carbonyl)amino]benzoic acid × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 6.5；289 K；0.4M Mg formate, 0.1M GndHCl, 0.1M Bis-Tris 6.5, vapor diffusion, temperature 289K
Resolution 2.90 Å R-free 0.286
3FMZ Crystal Structure of Retinol-Binding Protein 4 (RBP4) in complex with non-retinoid ligand Deposited 2008-12-22 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 19–201（183 aa）
Not recorded 2T1 2-[({4-[2-(trifluoromethyl)phenyl]piperidin-1-yl}carbonyl)amino]benzoic acid × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 6.5；289 K；0.4M Mg formate, 0.1M GndHCl, 0.1M Bis-Tris 6.5, vapor diffusion, temperature 289K
Resolution 2.90 Å R-free 0.286
4O9S Crystal structure of Retinol-Binding Protein 4 (RBP4)in complex with a non-retinoid ligand Deposited 2014-01-02 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 19–201（183 aa）
Not recorded 2RY 1-[4-(7-thia-9,11-diazatricyclo[6.4.0.0^{2,6}]dodeca-1(12),2(6),8,10-tetraen-12-yl)piperazin-1-yl]-2-[2-(trifluoromethyl)phenyl]ethanone × 1 EDO 1,2-ETHANEDIOL × 13 CL CHLORIDE ION × 2 PEG DI(HYDROXYETHYL)ETHER × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8；289 K；1M ammonium phosphate dibasic, 0.1M imidazole, 0.2M sodium chloride, pH 8.0, VAPOR DIFFUSION, SITTING DROP, temperature 289K
Resolution 2.30 Å R-free 0.261
4O9S Crystal structure of Retinol-Binding Protein 4 (RBP4)in complex with a non-retinoid ligand Deposited 2014-01-02 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 19–201（183 aa）
Not recorded 2RY 1-[4-(7-thia-9,11-diazatricyclo[6.4.0.0^{2,6}]dodeca-1(12),2(6),8,10-tetraen-12-yl)piperazin-1-yl]-2-[2-(trifluoromethyl)phenyl]ethanone × 1 EDO 1,2-ETHANEDIOL × 13 CL CHLORIDE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8；289 K；1M ammonium phosphate dibasic, 0.1M imidazole, 0.2M sodium chloride, pH 8.0, VAPOR DIFFUSION, SITTING DROP, temperature 289K
Resolution 2.30 Å R-free 0.261
4O9S Crystal structure of Retinol-Binding Protein 4 (RBP4)in complex with a non-retinoid ligand Deposited 2014-01-02 Assembly 3 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 19–201（183 aa）
Chain B 19–201（183 aa）
Not recorded 2RY 1-[4-(7-thia-9,11-diazatricyclo[6.4.0.0^{2,6}]dodeca-1(12),2(6),8,10-tetraen-12-yl)piperazin-1-yl]-2-[2-(trifluoromethyl)phenyl]ethanone × 2 EDO 1,2-ETHANEDIOL × 26 CL CHLORIDE ION × 3 PEG DI(HYDROXYETHYL)ETHER × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8；289 K；1M ammonium phosphate dibasic, 0.1M imidazole, 0.2M sodium chloride, pH 8.0, VAPOR DIFFUSION, SITTING DROP, temperature 289K
Resolution 2.30 Å R-free 0.261
4PSQ Crystal Structure of Retinol-Binding Protein 4 (RBP4) in complex with a non-retinoid ligand Deposited 2014-03-07 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 19–201（183 aa） Fragment：UNP residues 19-201
Not recorded 2WL (1-benzyl-1H-imidazol-4-yl)[4-(2-chlorophenyl)piperazin-1-yl]methanone × 1 PO4 PHOSPHATE ION × 1 EDO 1,2-ETHANEDIOL × 8 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8；293 K；1 M ammonium phosphate dibasic, 0.1 M imidazole, pH 8.0, 200 mM sodium chloride, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 2.40 Å R-free 0.287
4PSQ Crystal Structure of Retinol-Binding Protein 4 (RBP4) in complex with a non-retinoid ligand Deposited 2014-03-07 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 19–201（183 aa） Fragment：UNP residues 19-201
Not recorded 2WL (1-benzyl-1H-imidazol-4-yl)[4-(2-chlorophenyl)piperazin-1-yl]methanone × 1 PO4 PHOSPHATE ION × 1 EDO 1,2-ETHANEDIOL × 12 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8；293 K；1 M ammonium phosphate dibasic, 0.1 M imidazole, pH 8.0, 200 mM sodium chloride, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 2.40 Å R-free 0.287
5NTY Structure of non-fluorescent human plasma RBP4 Deposited 2017-04-28 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 19–200（182 aa）
Not recorded PLM PALMITIC ACID × 1 CL CHLORIDE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions MICRODIALYSIS；279 K；4.5M NaCl, 20mM Na cacodylate, pH 6.8
Resolution 2.00 Å R-free 0.230
5NU2 Structure of non-fluorescent human urine RBP4 Deposited 2017-04-28 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 19–200（182 aa）
Not recorded PLM PALMITIC ACID × 1 CL CHLORIDE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；4.3 M NaCl, 100 mM Hepes, pH 7.5
Resolution 1.50 Å R-free 0.184
5NU6 Structure of non-fluorescent human amniotic fluid RBP4 Deposited 2017-04-28 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 19–200（182 aa）
Not recorded PLM PALMITIC ACID × 1 CL CHLORIDE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；4.3 M NaCl, 100 mM Hepes, pH 7.5
Resolution 1.68 Å R-free 0.197
5NU7 Structure of human holo plasma RBP4 Deposited 2017-04-28 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 19–200（182 aa）
Not recorded RTL RETINOL × 1 CL CHLORIDE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions MICRODIALYSIS；277 K；4.5 M NaCl, 20 mM Na cacodylate, pH 6.8
Resolution 1.50 Å R-free 0.210
5NU8 Structure of human urine RBP4 saturated with palmitate Deposited 2017-04-28 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 19–200（182 aa）
Not recorded PLM PALMITIC ACID × 1 CL CHLORIDE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；4.3 M NaCl, 100 mM Hepes, pH 7.5
Resolution 1.59 Å R-free 0.212
5NU9 Structure of human amniotic fluid RBP4 saturated with palmitate Deposited 2017-04-28 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 19–200（182 aa）
Not recorded PLM PALMITIC ACID × 1 CL CHLORIDE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；4.3 M NaCl, 100 mM Hepes, pH 7.5
Resolution 1.50 Å R-free 0.195
5NUA Structure of human urine RBP4 saturated with laurate Deposited 2017-04-28 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 19–200（182 aa）
Not recorded DAO LAURIC ACID × 1 CL CHLORIDE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；4.3 M NaCl, 100 mM Hepes, pH 7.5
Resolution 1.60 Å R-free 0.197
5NUB Structure of human amniotic fluid RBP4 saturated with laurate Deposited 2017-04-28 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 19–200（182 aa）
Not recorded DAO LAURIC ACID × 1 CL CHLORIDE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；4.3 M NaCl, 100 mM Hepes, pH 7.5
Resolution 1.60 Å R-free 0.205
6QBA Crystal Structure of Retinol-Binding Protein 4 (RBP4) in complex with non-retinoid ligand A1120 and engineered binding scaffold Deposited 2018-12-20 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 19–201（183 aa）
Not recorded 2T1 2-[({4-[2-(trifluoromethyl)phenyl]piperidin-1-yl}carbonyl)amino]benzoic acid × 1 IMD IMIDAZOLE × 5 PEG DI(HYDROXYETHYL)ETHER × 1 ZN ZINC ION × 3 ACT ACETATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；295.15 K；0.2 M Zn acetate 0.1 M imidazole pH 8 20% PEG 3K
Resolution 1.80 Å R-free 0.221

This page presents structural evidence recorded in PDB/mmCIF.“No recorded non-water small molecule” does not prove that the experimental sample was ligand-free; experimental conditions belong to the PDB experiment, while ligands and copy counts are shown for each biological assembly.