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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：P02743 New Search
13PDB entries
15Biological assembly
90chain/assembly records
Main Difference Dimensions in This Set
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
1GYK Serum Amyloid P Component co-crystallised with MOBDG at neutral pH Deposited 2002-04-25 Assembly 1 Protein homooligomer Homooligomer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 20–223（204 aa）
Chain B 20–223（204 aa）
Chain C 20–223（204 aa）
Chain D 20–223（204 aa）
Chain E 20–223（204 aa）
Not recorded CA CALCIUM ION × 9 CDG METHYL 4,6-O-[(1R)-1-CARBOXYETHYLIDENE]-BETA-D-GALACTOPYRANOSIDE × 4 X-RAY DIFFRACTION
X-ray crystallization conditions pH 8；pH 8.00
Resolution 2.20 Å R-free 0.224
1LGN DECAMERIC DAMP COMPLEX OF HUMAN SERUM AMYLOID P COMPONENT Deposited 1996-12-04 Assembly 1 Protein homooligomer Homooligomer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 20–223（204 aa）
Chain B 20–223（204 aa）
Chain C 20–223（204 aa）
Chain D 20–223（204 aa）
Chain E 20–223（204 aa）
Not recorded CA CALCIUM ION × 10 D5M 2'-DEOXYADENOSINE-5'-MONOPHOSPHATE × 5 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；277 K；3 + 3 UL HANGING DROPS AT 277K PROTEIN SOLUTION: 20 MG/ML PROTEIN, 10 MM TRIS-HCL, PH 8.0, 140 MM NACL, 20 MM DAMP, 0.02 % NA-AZIDE. RESERVOIR SOLUTION: 100 MM BIS-TRIS PROPANE- HCL PH 8.0, 20 MM CALCIUM CHLORIDE, 12-14 % (W/V) POLYETHYLENEGLYCOL 4000., vapor diffusion - hanging drop
Resolution 2.80 Å R-free 0.252
1SAC THE STRUCTURE OF PENTAMERIC HUMAN SERUM AMYLOID P COMPONENT Deposited 1994-01-27 Assembly 1 Protein homooligomer Homooligomer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 20–223（204 aa）
Chain B 20–223（204 aa）
Chain C 20–223（204 aa）
Chain D 20–223（204 aa）
Chain E 20–223（204 aa）
Not recorded CA CALCIUM ION × 10 ACY ACETIC ACID × 4 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.00 Å
2A3W Decameric structure of human serum amyloid P-component bound to Bis-1,2-{[(Z)-2-carboxy-2-methyl-1,3-dioxane]-5-yloxycarbamoyl}-ethane Deposited 2005-06-27 Assembly 1 Protein homooligomer Homooligomer；Protein × 10 PDB declaration: decameric（10） Consistent with protein count
Chain A 20–223（204 aa）
Chain B 20–223（204 aa）
Chain C 20–223（204 aa）
Chain D 20–223（204 aa）
Chain E 20–223（204 aa）
Chain F 20–223（204 aa）
Chain G 20–223（204 aa）
Chain H 20–223（204 aa）
Chain I 20–223（204 aa）
Chain J 20–223（204 aa）
Not recorded CA CALCIUM ION × 20 CPJ BIS-1,2-{[(Z)-2-CARBOXY-2-METHYL-1,3-DIOXANE]-5-YLOXYCARBAMOYL}-ETHANE × 5 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.5；294 K；PEG 4000, PEG 400, sodium acetate, calcium acetate, sorbitol, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 294K
Resolution 2.20 Å R-free 0.229
2A3W Decameric structure of human serum amyloid P-component bound to Bis-1,2-{[(Z)-2-carboxy-2-methyl-1,3-dioxane]-5-yloxycarbamoyl}-ethane Deposited 2005-06-27 Assembly 2 Protein homooligomer Homooligomer；Protein × 10 PDB declaration: decameric（10） Consistent with protein count
Chain K 20–223（204 aa）
Chain L 20–223（204 aa）
Chain M 20–223（204 aa）
Chain N 20–223（204 aa）
Chain O 20–223（204 aa）
Chain P 20–223（204 aa）
Chain Q 20–223（204 aa）
Chain R 20–223（204 aa）
Chain S 20–223（204 aa）
Chain T 20–223（204 aa）
Not recorded CA CALCIUM ION × 20 CPJ BIS-1,2-{[(Z)-2-CARBOXY-2-METHYL-1,3-DIOXANE]-5-YLOXYCARBAMOYL}-ETHANE × 5 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.5；294 K；PEG 4000, PEG 400, sodium acetate, calcium acetate, sorbitol, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 294K
Resolution 2.20 Å R-free 0.229
2A3X Decameric crystal structure of human serum amyloid P-component bound to Bis-1,2-{[(Z)-2carboxy- 2-methyl-1,3-dioxane]- 5-yloxycarbonyl}-piperazine Deposited 2005-06-27 Assembly 1 Protein homooligomer Homooligomer；Protein × 10 PDB declaration: decameric（10） Consistent with protein count
Chain A 20–223（204 aa）
Chain B 20–223（204 aa）
Chain C 20–223（204 aa）
Chain D 20–223（204 aa）
Chain E 20–223（204 aa）
Chain F 20–223（204 aa）
Chain G 20–223（204 aa）
Chain H 20–223（204 aa）
Chain I 20–223（204 aa）
Chain J 20–223（204 aa）
Not recorded CA CALCIUM ION × 20 CPK BIS-1,2-{[(Z)-2CARBOXY-2-METHYL-1,3-DIOXANE]-5-YLOXYCARBONYL}-PIPERAZINE × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.5；294 K；sodium acetate, calcium acetate, PEG 8000, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 294K
Resolution 3.00 Å R-free 0.282
2A3Y Pentameric crystal structure of human serum amyloid P-component bound to Bis-1,2-{[(Z)-2carboxy-2-methyl-1,3-dioxane]-5-yloxycarbamoyl}-ethane. Deposited 2005-06-27 Assembly 1 Protein homooligomer Homooligomer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 20–223（204 aa）
Chain B 20–223（204 aa）
Chain C 20–223（204 aa）
Chain D 20–223（204 aa）
Chain E 20–223（204 aa）
Not recorded CA CALCIUM ION × 10 CPJ BIS-1,2-{[(Z)-2-CARBOXY-2-METHYL-1,3-DIOXANE]-5-YLOXYCARBAMOYL}-ETHANE × 5 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.5；294 K；sodium actetate, calcium acetate, PEG 8000, PEG 400, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 294K
Resolution 2.00 Å R-free 0.250
2W08 The structure of serum amyloid P component bound to 0-phospho- threonine Deposited 2008-08-12 Assembly 1 Protein homooligomer Homooligomer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 20–223（204 aa）
Chain B 20–223（204 aa）
Chain C 20–223（204 aa）
Chain D 20–223（204 aa）
Chain E 20–223（204 aa）
Not recorded CA CALCIUM ION × 10 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 5 TPO PHOSPHOTHREONINE × 5 X-RAY DIFFRACTION
X-ray crystallization conditions pH 8；0.06M TRIS-HCL PH8, 16% PEG 550MME, 0.01M CACL2, 0.08M NACL, 0.1% NAN3, 14.2MG/ML PROTEIN, 50MM LIGAND
Resolution 1.70 Å R-free 0.176
3D5O Structural recognition and functional activation of FcrR by innate pentraxins Deposited 2008-05-16 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 20–223（204 aa）
Chain B 20–223（204 aa）
Chain C 20–223（204 aa）
Chain D 20–223（204 aa）
Chain E 20–223（204 aa）
Not recorded SO4 SULFATE ION × 16 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 5 GOL GLYCEROL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.5；293 K；2.0 M NH4SO4, 5% iso-propanol, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.80 Å R-free 0.279
3KQR The structure of serum amyloid p component bound to phosphoethanolamine Deposited 2009-11-17 Assembly 1 Protein homooligomer Homooligomer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 20–223（204 aa）
Chain B 20–223（204 aa）
Chain C 20–223（204 aa）
Chain D 20–223（204 aa）
Chain E 20–223（204 aa）
Not recorded OPE PHOSPHORIC ACID MONO-(2-AMINO-ETHYL) ESTER × 5 CA CALCIUM ION × 10 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 5 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；298 K；0.06M TRIS-HCL pH8, 16% PEG 550MME, 0.01M CaCl2, 0.14M NaCl, 0.1% NaN3,14.2mg/ml Protein, 0.05M Ligand, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 1.50 Å R-free 0.161
4AVS Structure of N-Acetyl-L-Proline bound to Serum Amyloid P Component Deposited 2012-05-29 Assembly 1 Protein homooligomer Homooligomer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 20–223（204 aa）
Chain B 20–223（204 aa）
Chain C 20–223（204 aa）
Chain D 20–223（204 aa）
Chain E 20–223（204 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 5 CA CALCIUM ION × 10 N7P 1-ACETYL-L-PROLINE × 5 X-RAY DIFFRACTION
X-ray crystallization conditions pH 8；0.06 M TRIS-HCL, PH 8, 16% PEG 550 MME, 0.01 M CACL2, 0.08 M NACL AND 0.1% NAN3
Resolution 1.40 Å R-free 0.170
4AVT Structure of CPHPC bound to Serum Amyloid P Component Deposited 2012-05-29 Assembly 1 Protein homooligomer Homooligomer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 20–223（204 aa）
Chain C 20–223（204 aa）
Chain E 20–223（204 aa）
Chain G 20–223（204 aa）
Chain I 20–223（204 aa）
Not recorded CA CALCIUM ION × 10 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 5 GHE (2R)-1-[6-[(2R)-2-carboxypyrrolidin-1-yl]-6-oxidanylidene-hexanoyl]pyrrolidine-2-carboxylic acid × 3 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7.6；60MM TRIS-HCL, 80MM NACL, 15% PEG550 MME, pH 7.6
Resolution 3.20 Å R-free 0.197
4AVT Structure of CPHPC bound to Serum Amyloid P Component Deposited 2012-05-29 Assembly 2 Protein homooligomer Homooligomer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain B 20–223（204 aa）
Chain D 20–223（204 aa）
Chain F 20–223（204 aa）
Chain H 20–223（204 aa）
Chain J 20–223（204 aa）
Not recorded CA CALCIUM ION × 10 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 5 GHE (2R)-1-[6-[(2R)-2-carboxypyrrolidin-1-yl]-6-oxidanylidene-hexanoyl]pyrrolidine-2-carboxylic acid × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7.6；60MM TRIS-HCL, 80MM NACL, 15% PEG550 MME, pH 7.6
Resolution 3.20 Å R-free 0.197
4AVV Structure of CPHPC bound to Serum Amyloid P Component Deposited 2012-05-29 Assembly 1 Other combination Homooligomer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 20–223（204 aa）
Chain B 20–223（204 aa）
Chain C 20–223（204 aa）
Chain D 20–223（204 aa）
Chain E 20–223（204 aa）
Not recorded ACT ACETATE ION × 8 GHE (2R)-1-[6-[(2R)-2-carboxypyrrolidin-1-yl]-6-oxidanylidene-hexanoyl]pyrrolidine-2-carboxylic acid × 5 CD CADMIUM ION × 35 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 SIA N-acetyl-alpha-neuraminic acid × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 4.6；PH 4.6
Resolution 1.60 Å R-free 0.175
4AYU Structure of N-Acetyl-D-Proline bound to serum amyloid P component Deposited 2012-06-22 Assembly 1 Protein homooligomer Homooligomer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 20–223（204 aa）
Chain B 20–223（204 aa）
Chain C 20–223（204 aa）
Chain D 20–223（204 aa）
Chain E 20–223（204 aa）
Not recorded CA CALCIUM ION × 10 N8P N-ACETYL-D-PROLINE × 5 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 5 GOL GLYCEROL × 5 X-RAY DIFFRACTION
X-ray crystallization conditions pH 8；60 MM TRIS-HCL PH 8.0, 10 MM CACL2, 84 MM NACL, 20% GLYCEROL V/V, 17% PEG550 MME V/V
Resolution 1.50 Å R-free 0.168

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.