← Back to search

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：O00198 New Search
7PDB entries
16Biological assembly
21chain/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
2L58 Solution structure of the cytosolic fragment 22-53 of Bcl-2 member Harakiri Deposited 2010-10-28 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 22–53（32 aa） Fragment：UNP residues 22-53
Non-standard monomer：Yes (specific site not provided by mmCIF) No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 5.8；303 K；Ionic strength (raw mmCIF value) 0.1；Pressure ambient
NMR sample composition 1.0-1.5 mM Hrk-22_53, 0.1 mM sodium azide, 20 mM sodium phosphate, 35% v/v d3 TFE, 100% D2O | 100% D2O
NMR sample composition 1.0-1.5 mM Hrk-22_53, 0.1 mM sodium azide, 20 mM sodium phosphate, 35% v/v d2 TFE, 95% H2O/5% D2O | 95% H2O/5% D2O
Resolution not provided
2L5B Solution structure of the transmembrane domain of Bcl-2 member Harakiri in micelles Deposited 2010-10-29 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 61–91（31 aa） Fragment：UNP Residues 61-91
Non-standard monomer：Yes (specific site not provided by mmCIF) No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 3.2；323 K；Ionic strength (raw mmCIF value) 0.2；Pressure ambient
NMR sample composition 1.0-1.5 mM Hrk-TM, 200 mM D25 SDS, 5 mM D15 TCEP, 0.1 mM sodium azide, 35% v/v D3 methanol, 95% H2O/5% D2O | 95% H2O/5% D2O
NMR sample composition 1.0-1.5 mM Hrk-TM, 200 mM D25 SDS, 0.1 mM sodium azide, 5 mM D15 TCEP, 35% v/v D4 methanol, 100% D2O | 100% D2O
Resolution not provided
6XY4 Structural insight into sheep-pox virus mediated inhibition of apoptosis Deposited 2020-01-29 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 26–51（26 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；293 K；0.2 M Potassium sodium tartrate tetrahydrate, 0.1 M Bis-Tris propane pH 6.5, 20% w/vPEG 3350
Resolution 2.05 Å R-free 0.234
7P0U ORF virus encoded Bcl-2 homolog ORFV125 in complex with Puma BH3 peptide Deposited 2021-06-30 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain E 26–51（26 aa）
Chain U 26–51（26 aa）
Not recorded EDO 1,2-ETHANEDIOL × 3 GOL GLYCEROL × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.5；293 K；0.1 M Bis-Tris propane pH 8.5, 20% PEG 3350
Resolution 1.99 Å R-free 0.274
7P0U ORF virus encoded Bcl-2 homolog ORFV125 in complex with Puma BH3 peptide Deposited 2021-06-30 Assembly 2 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain C 26–51（26 aa）
Chain G 26–51（26 aa）
Not recorded EDO 1,2-ETHANEDIOL × 2 GOL GLYCEROL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.5；293 K；0.1 M Bis-Tris propane pH 8.5, 20% PEG 3350
Resolution 1.99 Å R-free 0.274
9LGU Crystal structure of Bcl-xL in complex with stapled HRK peptide Deposited 2025-01-10 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain B 27–50（24 aa）
Chain F 27–50（24 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) MG MAGNESIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；291 K；0.2 M Magnesium chloride hexahydrate, 0.1 M Tris pH 8.5 and 25% w/v Polyethylene glycol 3,350 (w/v)
Resolution 2.97 Å R-free 0.303
9LGU Crystal structure of Bcl-xL in complex with stapled HRK peptide Deposited 2025-01-10 Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 27–50（24 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) MG MAGNESIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；291 K；0.2 M Magnesium chloride hexahydrate, 0.1 M Tris pH 8.5 and 25% w/v Polyethylene glycol 3,350 (w/v)
Resolution 2.97 Å R-free 0.303
9LGU Crystal structure of Bcl-xL in complex with stapled HRK peptide Deposited 2025-01-10 Assembly 3 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain D 27–50（24 aa）
Chain H 27–50（24 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) MG MAGNESIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；291 K；0.2 M Magnesium chloride hexahydrate, 0.1 M Tris pH 8.5 and 25% w/v Polyethylene glycol 3,350 (w/v)
Resolution 2.97 Å R-free 0.303
9LGU Crystal structure of Bcl-xL in complex with stapled HRK peptide Deposited 2025-01-10 Assembly 4 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain D 27–50（24 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) MG MAGNESIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；291 K；0.2 M Magnesium chloride hexahydrate, 0.1 M Tris pH 8.5 and 25% w/v Polyethylene glycol 3,350 (w/v)
Resolution 2.97 Å R-free 0.303
9LGU Crystal structure of Bcl-xL in complex with stapled HRK peptide Deposited 2025-01-10 Assembly 5 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain F 27–50（24 aa）
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；291 K；0.2 M Magnesium chloride hexahydrate, 0.1 M Tris pH 8.5 and 25% w/v Polyethylene glycol 3,350 (w/v)
Resolution 2.97 Å R-free 0.303
9LGU Crystal structure of Bcl-xL in complex with stapled HRK peptide Deposited 2025-01-10 Assembly 6 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain H 27–50（24 aa）
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；291 K；0.2 M Magnesium chloride hexahydrate, 0.1 M Tris pH 8.5 and 25% w/v Polyethylene glycol 3,350 (w/v)
Resolution 2.97 Å R-free 0.303
9LGU Crystal structure of Bcl-xL in complex with stapled HRK peptide Deposited 2025-01-10 Assembly 7 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain L 27–50（24 aa）
Chain M 27–50（24 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) MG MAGNESIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；291 K；0.2 M Magnesium chloride hexahydrate, 0.1 M Tris pH 8.5 and 25% w/v Polyethylene glycol 3,350 (w/v)
Resolution 2.97 Å R-free 0.303
9LGU Crystal structure of Bcl-xL in complex with stapled HRK peptide Deposited 2025-01-10 Assembly 8 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain L 27–50（24 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) MG MAGNESIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；291 K；0.2 M Magnesium chloride hexahydrate, 0.1 M Tris pH 8.5 and 25% w/v Polyethylene glycol 3,350 (w/v)
Resolution 2.97 Å R-free 0.303
9LGU Crystal structure of Bcl-xL in complex with stapled HRK peptide Deposited 2025-01-10 Assembly 9 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain M 27–50（24 aa）
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；291 K；0.2 M Magnesium chloride hexahydrate, 0.1 M Tris pH 8.5 and 25% w/v Polyethylene glycol 3,350 (w/v)
Resolution 2.97 Å R-free 0.303
9LI8 Crystal structure of Bcl-xL in complex with HRK BH3 peptide Deposited 2025-01-13 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 27–51（25 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；291.15 K；0.2 M Magnesium chloride hexahydrate, 0.1 M Tris pH 8.5 and 25% w/v Polyethylene glycol 3350.
Resolution 2.32 Å R-free 0.264
9UGP Crystal structure of MCL-1 in complex with HRK BH3 Deposited 2025-04-13 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 27–51（25 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；291.15 K；0.1 M BIS-TRIS pH 6.5, 25%(w/v) polyethylene glycol monomethyl ether 2000
Resolution 1.39 Å R-free 0.197

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.