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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：Q9UK05 New Search
20PDB entries
25Biological assembly
36chain/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
1ZKZ Crystal Structure of BMP9 Deposited 2005-05-04 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 320–429（110 aa） Fragment：Growth/differentiation factor 2, residues 320-429
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；296 K；1-1.2 M Sodium Chloride, 7-10 mM Hexadecyltrimethylammonium Bromide 10 mM Magnesium Chloride, pH 7.5, temperature 296K, VAPOR DIFFUSION, HANGING DROP
Resolution 2.33 Å R-free 0.272
4FAO Specificity and Structure of a high affinity Activin-like 1 (ALK1) signaling complex Deposited 2012-05-22 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 320–429（110 aa）
Chain B 320–429（110 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 NA SODIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 6.5；293 K；20% PEG 3350, 0.2 M sodium malonate, 0.1 M Bis-Tris propane, pH 6.5, vapor diffusion, temperature 293K
Resolution 3.36 Å R-free 0.261
4FAO Specificity and Structure of a high affinity Activin-like 1 (ALK1) signaling complex Deposited 2012-05-22 Assembly 2 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain G 320–429（110 aa）
Chain H 320–429（110 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 NA SODIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 6.5；293 K；20% PEG 3350, 0.2 M sodium malonate, 0.1 M Bis-Tris propane, pH 6.5, vapor diffusion, temperature 293K
Resolution 3.36 Å R-free 0.261
4FAO Specificity and Structure of a high affinity Activin-like 1 (ALK1) signaling complex Deposited 2012-05-22 Assembly 3 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain M 320–429（110 aa）
Chain N 320–429（110 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 NA SODIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 6.5；293 K；20% PEG 3350, 0.2 M sodium malonate, 0.1 M Bis-Tris propane, pH 6.5, vapor diffusion, temperature 293K
Resolution 3.36 Å R-free 0.261
4FAO Specificity and Structure of a high affinity Activin-like 1 (ALK1) signaling complex Deposited 2012-05-22 Assembly 4 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain S 320–429（110 aa）
Chain T 320–429（110 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 NA SODIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 6.5；293 K；20% PEG 3350, 0.2 M sodium malonate, 0.1 M Bis-Tris propane, pH 6.5, vapor diffusion, temperature 293K
Resolution 3.36 Å R-free 0.261
4FAO Specificity and Structure of a high affinity Activin-like 1 (ALK1) signaling complex Deposited 2012-05-22 Assembly 5 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain a 320–429（110 aa）
Chain b 320–429（110 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 NA SODIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 6.5；293 K；20% PEG 3350, 0.2 M sodium malonate, 0.1 M Bis-Tris propane, pH 6.5, vapor diffusion, temperature 293K
Resolution 3.36 Å R-free 0.261
4FAO Specificity and Structure of a high affinity Activin-like 1 (ALK1) signaling complex Deposited 2012-05-22 Assembly 6 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain g 320–429（110 aa）
Chain h 320–429（110 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 NA SODIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 6.5；293 K；20% PEG 3350, 0.2 M sodium malonate, 0.1 M Bis-Tris propane, pH 6.5, vapor diffusion, temperature 293K
Resolution 3.36 Å R-free 0.261
4MPL Crystal structure of BMP9 at 1.90 Angstrom Deposited 2013-09-13 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 321–429（109 aa） Fragment：UNP residues 321-429
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.4；298 K；0.12M magnesium nitrate, 12% PEG3350, pH 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 1.90 Å R-free 0.224
4YCG Pro-bone morphogenetic protein 9 Deposited 2015-02-20 Assembly 1 Other combination Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain C 320–429（110 aa）
Chain D 320–429（110 aa）
Not recorded ZN ZINC ION × 10 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.8；277 K；0.15 M zinc acetate, 0.1 M sodium cacodylate pH 5.8, 4% isopropanol, 0.15 M nondetergent sulfobetaine (NDSB-211)
Resolution 3.30 Å R-free 0.230
4YCI non-latent pro-bone morphogenetic protein 9 Deposited 2015-02-20 Assembly 1 Other combination Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain C 320–429（110 aa）
Chain D 320–429（110 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ZN ZINC ION × 10 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.8；277 K；0.15 M zinc acetate, 0.1 M sodium cacodylate pH 5.8, 4% isopropanol, 0.15 M nondetergent sulfobetaine (NDSB-211)
Resolution 3.25 Å R-free 0.260
5HZW Crystal structure of the orphan region of human endoglin/CD105 in complex with BMP9 Deposited 2016-02-03 Assembly 1 Insufficient information Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain B 320–429（110 aa） Fragment：UNP residues 320-429
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；293 K；1.1 M AMMONIUM TARTRATE
Resolution 4.45 Å R-free 0.318
5I05 Crystal structure of human BMP9 at 1.87 A resolution Deposited 2016-02-03 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 320–429（110 aa） Fragment：UNP residues 320-429
Not recorded GOL GLYCEROL × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 3.5；293 K；1.0 M LiCl, 4% (v/v) PEG6000, 0.1 M NA-CITRATE
Resolution 1.87 Å R-free 0.233
6SF2 Ternary complex of human bone morphogenetic protein 9 (BMP9) growth factor domain, its prodomain and extracellular domain of activin receptor-like kinase 1 (ALK1). Deposited 2019-07-31 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain B 320–429（110 aa）
Chain C 23–319（297 aa）
Chain E 320–429（110 aa）
Chain F 23–319（297 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；295 K；0.14 M potassium sodium tartrate, 14% PEG 3350
Resolution 3.30 Å R-free 0.274
9DPM BMP-9 Monomer Growth Factor with Cysteinylation Deposited 2024-09-22 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 320–429（110 aa）
Mutation：A321S CYS CYSTEINE × 1 NA SODIUM ION × 3 CL CHLORIDE ION × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；289.15 K；0.9 M sodium chloride, 133 mM HEPES, 166 mM MES
Resolution 1.90 Å R-free 0.242
9DPN BMP-9 Wild-Type Dimer Without Radiation Damage in Neutral pH Deposited 2024-09-23 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 320–429（110 aa）
Mutation：A321S GOL GLYCEROL × 2 CL CHLORIDE ION × 10 NA SODIUM ION × 8 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；289.15 K；1M NaCl, 17% Glycerol, 0.1 M HEPEs pH 7.5
Resolution 2.24 Å R-free 0.206
9DPO BMP-9 Wild-Type Dimer With Radiation Damage in Neutral pH Deposited 2024-09-23 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 320–429（110 aa）
Mutation：A321S CL CHLORIDE ION × 10 NA SODIUM ION × 8 GOL GLYCEROL × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；289.15 K；1M NaCl, 17% Glycerol, 0.1 M HEPEs pH 7.5
Resolution 2.34 Å R-free 0.245
9DPP BMP-9 Wild-Type Dimer in Acidic pH Deposited 2024-09-23 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 320–429（110 aa）
Mutation：A321S GOL GLYCEROL × 4 CL CHLORIDE ION × 18 NA SODIUM ION × 10 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 3.5；289.15 K；1M NaCl, 3.5% PEG8K, 0.3M Citrate pH 3.5
Resolution 2.12 Å R-free 0.258
9DPQ BMP-9 Wild-Type Dimer without Radiation Damage in Acidic pH Deposited 2024-09-23 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 320–429（110 aa）
Mutation：A321S GOL GLYCEROL × 4 CL CHLORIDE ION × 20 NA SODIUM ION × 12 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 3.5；289.15 K；1M NaCl, 3.5% PEG8K, 0.3M Sodium Citrate pH 3.5
Resolution 2.35 Å R-free 0.249
9DPR BMP-9 Wild-Type Dimer with Radiation Damage in Acidic pH Deposited 2024-09-23 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 320–429（110 aa）
Mutation：A321S GOL GLYCEROL × 2 CL CHLORIDE ION × 20 NA SODIUM ION × 6 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 3.5；289.15 K；1M NaCl, 3.5% PEG8K, 0.3M Sodium Citrate pH 3.5
Resolution 2.61 Å R-free 0.266
9DPS BMP-9 G389S Dimer Without Radiation Damage in Neutral pH Deposited 2024-09-23 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 320–429（110 aa）
Mutation：A321S, G389S CL CHLORIDE ION × 12 NA SODIUM ION × 8 GOL GLYCEROL × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；289.15 K；1M NaCl, 22-26% glycerol, 0.1 M HEPES pH 7.5
Resolution 2.06 Å R-free 0.249
9DPT BMP-9 G389S Dimer With Radiation Damage in Neutral pH Deposited 2024-09-23 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 320–429（110 aa）
Mutation：A321S, G389S CL CHLORIDE ION × 10 NA SODIUM ION × 8 GOL GLYCEROL × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；289.15 K；1M NaCl, 22-26% glycerol, 0.1 M HEPEs pH 7.5
Resolution 2.49 Å R-free 0.279
9DPU BMP-9 G389S Dimer in Acidic pH Deposited 2024-09-23 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 320–429（110 aa）
Mutation：A321S, G389S CL CHLORIDE ION × 10 NA SODIUM ION × 2 GOL GLYCEROL × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4；293 K；1M NaCl, 0.1M Acetic Acid pH 4, 27% Glycerol
Resolution 2.10 Å R-free 0.224
9DPV BMP-9 K357R G389S Dimer Without Radiation Damage in Neutral pH Deposited 2024-09-23 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 320–429（110 aa）
Mutation：A321S, K357R, G389S GOL GLYCEROL × 2 CL CHLORIDE ION × 10 NA SODIUM ION × 8 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；289.15 K；1M NaCl, 22-26% glycerol, 0.1 M HEPES pH 7.5
Resolution 1.99 Å R-free 0.265
9DPW BMP-9 K357R G389S Dimer With Radiation Damage in Neutral pH Deposited 2024-09-23 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 320–429（110 aa）
Mutation：A321S, K357R, G389S GOL GLYCEROL × 4 CL CHLORIDE ION × 18 NA SODIUM ION × 6 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；289.15 K；1M NaCl, 22-26% glycerol, 0.1 M HEPES pH 7.5
Resolution 2.71 Å R-free 0.299
9DPX BMP-9 G389S K357R Dimer in Acidic pH Deposited 2024-09-23 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 320–429（110 aa）
Mutation：A321S, K357R, G389S GOL GLYCEROL × 4 CL CHLORIDE ION × 12 NA SODIUM ION × 6 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4；293 K；1M NaCl , 0.1M Acetic Acid pH 4, 32% Glycerol
Resolution 2.10 Å R-free 0.268

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.