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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：Q9BQB4 New Search
3PDB 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
2K8P Characterisation of the structural features and interactions of sclerostin: molecular insight into a key regulator of Wnt-mediated bone formation Deposited 2008-09-18 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 25–213（189 aa） Fragment：UNP residues 25 to 213
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 5.5；308 K；Ionic strength (raw mmCIF value) 100；Pressure ambient
NMR sample composition 310 uM entity, 5 % D2O, 95 % H2O, 25 mM sodium phosphate, 100 mM sodium chloride, 95% H2O/5% D2O | 95% H2O/5% D2O
NMR sample composition 250 uM [U-15N] entity, 5 % D2O, 95 % H2O, 25 mM sodium phosphate, 100 mM sodium chloride, 95% H2O/5% D2O | 95% H2O/5% D2O
NMR sample composition 200 uM [U-13C; U-15N] entity, 5 % D2O, 95 % H2O, 25 mM sodium phosphate, 100 mM sodium chloride, 95% H2O/5% D2O | 95% H2O/5% D2O
Resolution not provided
3SOV The structure of a beta propeller domain in complex with peptide S Deposited 2011-06-30 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain Z 115–121（7 aa） Fragment：UNP residues 115-121
Non-standard monomer：Yes (specific site not provided by mmCIF) NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 FUC alpha-L-fucopyranose × 4 GOL GLYCEROL × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8；277 K；0.1M potassium thiocyanate and 30% (w/v) PEG MME 2000, pH 8, VAPOR DIFFUSION, SITTING DROP, temperature 277K
Resolution 1.27 Å R-free 0.180
6L6R Crystal structure of LRP6 E1E2-SOST complex Deposited 2019-10-29 Assembly 1 Other combination Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain C 24–177（154 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 MG MAGNESIUM ION × 2 ACT ACETATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；301 K；PEG 8000, magnesium acetate, sodium citrate, HEPES
Resolution 3.80 Å R-free 0.256
6L6R Crystal structure of LRP6 E1E2-SOST complex Deposited 2019-10-29 Assembly 2 Other combination Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain D 24–177（154 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 MG MAGNESIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；301 K；PEG 8000, magnesium acetate, sodium citrate, HEPES
Resolution 3.80 Å R-free 0.256

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.