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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：P02461 New Search
10PDB entries
10Biological assembly
28chain/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
2V53 Crystal structure of a SPARC-collagen complex Deposited 2008-10-01 Assembly 1 Other combination Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain B 564–584（21 aa） Fragment：RESIDUES 564-584
Chain C 564–584（21 aa） Fragment：RESIDUES 564-584
Chain D 564–584（21 aa） Fragment：RESIDUES 564-584
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) CA CALCIUM ION × 1 SO4 SULFATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 5.5；pH 5.5
Resolution 3.20 Å R-free 0.320
3DMW Crystal structure of human type III collagen G982-G1023 containing C-terminal cystine knot Deposited 2008-07-01 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1158–1199（42 aa） Fragment：UNP residues 1158-1199
Chain B 1158–1199（42 aa） Fragment：UNP residues 1158-1199
Chain C 1158–1199（42 aa） Fragment：UNP residues 1158-1199
Mutation：Q1183M Non-standard monomer：Yes (specific site not provided by mmCIF) Mutation：Q1183M Non-standard monomer：Yes (specific site not provided by mmCIF) Mutation：Q1183M Non-standard monomer：Yes (specific site not provided by mmCIF) No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；30% PEG 550, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.30 Å R-free 0.274
4AE2 Crystal structure of Human fibrillar procollagen type III C- propeptide trimer Deposited 2012-01-05 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1222–1466（245 aa） Fragment：CPROPEPTIDE OF PROCOLLAGEN III, RESIDUES 1222-1466
Chain B 1222–1466（245 aa） Fragment：CPROPEPTIDE OF PROCOLLAGEN III, RESIDUES 1222-1466
Chain C 1222–1466（245 aa） Fragment：CPROPEPTIDE OF PROCOLLAGEN III, RESIDUES 1222-1466
Mutation：YES Mutation：YES Mutation：YES CA CALCIUM ION × 3 NO3 NITRATE ION × 5 X-RAY DIFFRACTION
X-ray crystallization conditions pH 6.5；20% PEG 3350, 0.1 M BIS TRIS PROPANE PH 6.5, POTASSIUM NITRATE 0.2 M
Resolution 1.68 Å R-free 0.214
4AEJ Crystal structure of Human fibrillar procollagen type III C- propeptide trimer Deposited 2012-01-11 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1222–1466（245 aa） Fragment：CPROPEPTIDE OF PROCOLLAGEN III, RESIDUES 1222-1466
Chain B 1222–1466（245 aa） Fragment：CPROPEPTIDE OF PROCOLLAGEN III, RESIDUES 1222-1466
Chain C 1222–1466（245 aa） Fragment：CPROPEPTIDE OF PROCOLLAGEN III, RESIDUES 1222-1466
Mutation：YES Non-standard monomer：Yes (specific site not provided by mmCIF) Mutation：YES Non-standard monomer：Yes (specific site not provided by mmCIF) Mutation：YES Non-standard monomer：Yes (specific site not provided by mmCIF) CA CALCIUM ION × 3 GOL GLYCEROL × 7 X-RAY DIFFRACTION
X-ray crystallization conditions 20% PEG 3350, 0.2 M NACL
Resolution 2.21 Å R-free 0.237
4AK3 Crystal structure of Human fibrillar procollagen type III C- propeptide trimer Deposited 2012-02-21 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1222–1466（245 aa） Fragment：CPROPEPTIDE, RESIDUES 1222-1466
Mutation：YES CA CALCIUM ION × 3 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 3.50 Å R-free 0.337
6FZV Crystal structure of the metalloproteinase enhancer PCPE-1 bound to the procollagen C propeptide trimer (short) Deposited 2018-03-15 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1222–1466（245 aa）
Chain B 1222–1466（245 aa）
Chain C 1222–1466（245 aa）
Not recorded CA CALCIUM ION × 5 FLC CITRATE ANION × 3 CL CHLORIDE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；295 K；20 mg/ml protein in 20 mM HEPES pH 7.5, 180 mM NaCl, 2.5 mM calcium chloride; 0.2 M potassium citrate, 16% PEG3350
Resolution 2.70 Å R-free 0.258
6FZW Crystal structure of the metalloproteinase enhancer PCPE-1 bound to the procollagen C propeptide trimer (long) Deposited 2018-03-15 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1185–1466（282 aa）
Chain B 1185–1466（282 aa）
Chain C 1185–1466（282 aa）
Not recorded CA CALCIUM ION × 5 FLC CITRATE ANION × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；295 K；20 mg/ml protein in 20 mM HEPES pH 7.5, 180 mM NaCl, 2.5 mM calcium chloride; 0.2 M ammonium citrate, 18% PEG3350
Resolution 2.78 Å R-free 0.271
7WWR Structure of a triple-helix region of human collagen type III from Trautec Deposited 2022-02-14 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 973–1002（30 aa）
Chain B 973–1002（30 aa）
Chain C 973–1002（30 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；0.1M MIB pH5.0, 25% PEG 1500
Resolution 1.30 Å R-free 0.194
7WWS Structure of a triple-helix region of human collagen type III from Trautec Deposited 2022-02-14 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 976–1002（27 aa）
Chain B 976–1002（27 aa）
Chain C 976–1002（27 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；0.2M MgAc2, 0.1M Na cacodylate pH6.5, 20% PEG 8000
Resolution 1.30 Å R-free 0.158
7XAN Structure of a triple-helix region of human collagen type III from Trautec Deposited 2022-03-18 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 922–948（27 aa）
Chain B 922–948（27 aa）
Chain C 922–948（27 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；0.04M K phosphate monobasic, 16% w/v PEG 8000, 20% v/v Glycerol
Resolution 1.50 Å R-free 0.200

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.