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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：P39060 New Search
9PDB entries
14Biological assembly
35chain/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
1BNL ZINC DEPENDENT DIMERS OBSERVED IN CRYSTALS OF HUMAN ENDOSTATIN Deposited 1998-07-30 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1334–1511（178 aa） Fragment：ENDOSTATIN, 20-KDA COLLAGEN XVIII C-TERMINAL GLOBULAR DOMAIN
Not recorded ZN ZINC ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 8.5；pH 8.5
Resolution 2.90 Å R-free 0.275
1BNL ZINC DEPENDENT DIMERS OBSERVED IN CRYSTALS OF HUMAN ENDOSTATIN Deposited 1998-07-30 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 1334–1511（178 aa） Fragment：ENDOSTATIN, 20-KDA COLLAGEN XVIII C-TERMINAL GLOBULAR DOMAIN
Not recorded ZN ZINC ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 8.5；pH 8.5
Resolution 2.90 Å R-free 0.275
1BNL ZINC DEPENDENT DIMERS OBSERVED IN CRYSTALS OF HUMAN ENDOSTATIN Deposited 1998-07-30 Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain C 1334–1511（178 aa） Fragment：ENDOSTATIN, 20-KDA COLLAGEN XVIII C-TERMINAL GLOBULAR DOMAIN
Not recorded ZN ZINC ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 8.5；pH 8.5
Resolution 2.90 Å R-free 0.275
1BNL ZINC DEPENDENT DIMERS OBSERVED IN CRYSTALS OF HUMAN ENDOSTATIN Deposited 1998-07-30 Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain D 1334–1511（178 aa） Fragment：ENDOSTATIN, 20-KDA COLLAGEN XVIII C-TERMINAL GLOBULAR DOMAIN
Not recorded ZN ZINC ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 8.5；pH 8.5
Resolution 2.90 Å R-free 0.275
3HON Crystal Structure of Human Collagen XVIII Trimerization Domain (cubic form) Deposited 2009-06-02 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1441–1496（56 aa） Fragment：UNP residues 1441-1496
Mutation：A1441G No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；298 K；0.25M MgCl2, 0.1M BisTris, 18-22% (w/v) PEG 8000, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K
Resolution 3.00 Å R-free 0.288
3HSH Crystal structure of human collagen XVIII trimerization domain (Tetragonal crystal form) Deposited 2009-06-10 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1441–1496（56 aa） Fragment：UNP residues 1441-1496
Chain B 1441–1496（56 aa） Fragment：UNP residues 1441-1496
Chain C 1441–1496（56 aa） Fragment：UNP residues 1441-1496
Mutation：A1441G Mutation：A1441G Mutation：A1441G SO4 SULFATE ION × 10 GOL GLYCEROL × 7 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 3.5；298 K；1.65M ammonium sulfate, 0.1M citric acid, pH 3.5, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K
Resolution 1.80 Å R-free 0.224
3HSH Crystal structure of human collagen XVIII trimerization domain (Tetragonal crystal form) Deposited 2009-06-10 Assembly 2 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain D 1441–1496（56 aa） Fragment：UNP residues 1441-1496
Chain E 1441–1496（56 aa） Fragment：UNP residues 1441-1496
Chain F 1441–1496（56 aa） Fragment：UNP residues 1441-1496
Mutation：A1441G Mutation：A1441G Mutation：A1441G SO4 SULFATE ION × 3 GOL GLYCEROL × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 3.5；298 K；1.65M ammonium sulfate, 0.1M citric acid, pH 3.5, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K
Resolution 1.80 Å R-free 0.224
3HSH Crystal structure of human collagen XVIII trimerization domain (Tetragonal crystal form) Deposited 2009-06-10 Assembly 3 Protein homooligomer Homooligomer；Protein × 24 PDB declaration: 24-meric（24） Consistent with protein count
Chain A 1441–1496（56 aa） Fragment：UNP residues 1441-1496
Chain B 1441–1496（56 aa） Fragment：UNP residues 1441-1496
Chain C 1441–1496（56 aa） Fragment：UNP residues 1441-1496
Chain D 1441–1496（56 aa） Fragment：UNP residues 1441-1496
Chain E 1441–1496（56 aa） Fragment：UNP residues 1441-1496
Chain F 1441–1496（56 aa） Fragment：UNP residues 1441-1496
Mutation：A1441G Mutation：A1441G Mutation：A1441G Mutation：A1441G Mutation：A1441G Mutation：A1441G SO4 SULFATE ION × 52 GOL GLYCEROL × 36 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 3.5；298 K；1.65M ammonium sulfate, 0.1M citric acid, pH 3.5, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K
Resolution 1.80 Å R-free 0.224
9BNB Collagen XVIII trimerization domain with introduced inter-chain disulfide bond, G(-1)C-L5C Deposited 2024-05-02 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1440–1496（57 aa）
Chain B 1440–1496（57 aa）
Chain C 1440–1496（57 aa）
Mutation：;A(-1)C, L5C (authors' numbering) ; Mutation：;A(-1)C, L5C (authors' numbering) ; Mutation：;A(-1)C, L5C (authors' numbering) ; No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；0.1 M Bis-Tris HCl, pH 6.5, 25% (w/v) PEG 3350
Resolution 1.50 Å R-free 0.233
9BNC Collagen XVIII trimerization domain with introduced inter-chain disulfide bond, E31C-V37C Deposited 2024-05-02 Assembly 1 Protein homooligomer Homooligomer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1440–1496（57 aa） Fragment：trimerization domain
Chain B 1440–1496（57 aa） Fragment：trimerization domain
Chain C 1440–1496（57 aa） Fragment：trimerization domain
Mutation：E31C, V37C Mutation：E31C, V37C Mutation：E31C, V37C SO4 SULFATE ION × 1 PEG DI(HYDROXYETHYL)ETHER × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；0.2 M Lithium Sulfate, 0.1 M Tris HCl, pH 8.5, 25% (w/v) PEG3350
Resolution 1.40 Å R-free 0.196
9BND SARS-CoV-2 spike HexaPro protein in complex with T0A trimeric antagonist Deposited 2024-05-02 Assembly 1 Insufficient information Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 1442–1496（55 aa） Fragment：residues 1442-1496 (Uniprot numbering),Peptidase M2 domain
Chain C 1442–1496（55 aa） Fragment：residues 1442-1496 (Uniprot numbering),Peptidase M2 domain
Chain E 1442–1496（55 aa） Fragment：residues 1442-1496 (Uniprot numbering),Peptidase M2 domain
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 33 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4；1x PBS 137 mM NaCl, 2.7 mM KCl, 10 mM Na2HPO4, 1.8 mM KH2PO4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.19 Å
9BNE SARS-CoV-2 spike HexaPro protein in complex with T3A trimeric antagonist Deposited 2024-05-02 Assembly 1 Insufficient information Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 1442–1496（55 aa）
Chain C 1442–1496（55 aa）
Chain E 1442–1496（55 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 33 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4；1x PBS 137 mM NaCl, 2.7 mM KCl, 10 mM Na2HPO4, 1.8 mM KH2PO4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.43 Å
9BNF SARS-CoV-2 spike HexaPro protein in complex with T5A trimeric antagonist Deposited 2024-05-02 Assembly 1 Insufficient information Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 1442–1497（56 aa）
Chain C 1442–1497（56 aa）
Chain E 1442–1497（56 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 33 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4；1x PBS: 137 mM NaCl, 2.7 mM KCl, 10 mM Na2HPO4, 1.8 mM KH2PO4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.33 Å
9BNG SARS-CoV-2 spike HexaPro protein in complex with T18A trimeric antagonist Deposited 2024-05-02 Assembly 1 Insufficient information Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 1442–1497（56 aa）
Chain C 1442–1497（56 aa）
Chain E 1442–1497（56 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 28 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4；1x PBS 137 mM NaCl, 2.7 mM KCl, 10 mM Na2HPO4, 1.8 mM KH2PO4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.73 Å

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.