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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：Q15113 New Search
4PDB entries
4Biological assembly
4chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification Different assembly state Different ligand/ion Different experimental method 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
1UAP NMR structure of the NTR domain from human PCOLCE1 Deposited 2003-03-14 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 313–442（130 aa） Fragment：NTR domain
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 5.5；301 K；Ionic strength (raw mmCIF value) 0.05；Pressure ambient
NMR measurement conditions pH 7.5；301 K；Ionic strength (raw mmCIF value) 0.05；Pressure ambient
NMR sample composition 1mM NTR(PCOLCE1) U-15N | 90% H2O/10% D2O
NMR sample composition 1mM NTR(PCOLCE1) | 90% H2O/10% D2O
NMR sample composition 1mM NTR(PCOLCE1) | 100% D2O
Resolution not provided
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 D 26–278（253 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 D 26–278（253 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
9EN2 Crystal structure of the metalloproteinase enhancer PCPE-1 complexed with nanobodies VHH-H4 and VHH-I5 Deposited 2024-03-12 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 25–277（253 aa）
Not recorded CA CALCIUM ION × 2 GOL GLYCEROL × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 6.5；292.15 K；10% PEG 8000, 50 mM L-argininamide dihydrochloride, 50 mM spermine, 50 mM sodium cacodylate pH 6.5, 50 mM potassium chloride
Resolution 2.20 Å R-free 0.242

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.