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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：P01922 New Search
8PDB entries
8Biological assembly
16chain/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
1HDB ANALYSIS OF THE CRYSTAL STRUCTURE, MOLECULAR MODELING AND INFRARED SPECTROSCOPY OF THE DISTAL BETA-HEME POCKET VALINE67(E11)-THREONINE MUTATION OF HEMOGLOBIN Deposited 1995-04-14 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1–141（141 aa）
Chain C 1–141（141 aa）
Mutation：CHAIN B, D, V67T Mutation：CHAIN B, D, V67T HEM PROTOPORPHYRIN IX CONTAINING FE × 4 SO4 SULFATE ION × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.20 Å
1NQP Crystal structure of Human hemoglobin E at 1.73 A resolution Deposited 2003-01-22 Assembly 1 Insufficient information Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain not uniquely mapped Reference range not declared
Chain C 1–141（141 aa）
Not recorded CYN CYANIDE ION × 4 HEM PROTOPORPHYRIN IX CONTAINING FE × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；277 K；PEG and Glycerol, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K
Resolution 1.73 Å R-free 0.211
1XYE T-to-THigh Transitions in Human Hemoglobin: alpha Y42A deoxy low salt Deposited 2004-11-09 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1–141（141 aa）
Chain C 1–141（141 aa）
Mutation：V1M, Y42A Mutation：V1M, Y42A HEM PROTOPORPHYRIN IX CONTAINING FE × 4 X-RAY DIFFRACTION
X-ray crystallization conditions batch；pH 7；298 K；10% PEG 6000, 10 mM potassium phosphate, 100 mM potassium chloride, 3 mM sodium dithionite, 10 mg/ml Hb, pH 7.0, batch, temperature 298K
Resolution 2.13 Å R-free 0.241
1XZ2 wild-type hemoglobin deoxy no-salt Deposited 2004-11-11 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1–141（141 aa）
Chain C 1–141（141 aa）
Not recorded HEM PROTOPORPHYRIN IX CONTAINING FE × 4 X-RAY DIFFRACTION
X-ray crystallization conditions batch；pH 7；298 K；12% PEG 1450, 10 mg/ml Hb, pH 7.0, batch, temperature 298.0K
Resolution 1.90 Å R-free 0.201
1XZ4 Intersubunit Interactions Associated with Tyr42alpha Stabilize the Quaternary-T Tetramer but are not Major Quaternary Constraints in Deoxyhemoglobin: alphaY42A deoxyhemoglobin no-salt Deposited 2004-11-11 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1–141（141 aa）
Chain C 1–141（141 aa）
Mutation：V1M, Y42A Mutation：V1M, Y42A HEM PROTOPORPHYRIN IX CONTAINING FE × 4 X-RAY DIFFRACTION
X-ray crystallization conditions batch；pH 4.6；298 K；15% PEG 4000, 50 mM sodium acetate, 100 mM ammonium acetate, 3 mM sodium dithionite, 20 mg/ml Hb, pH 4.6, batch, temperature 298K
Resolution 2.00 Å R-free 0.224
2HHB THE CRYSTAL STRUCTURE OF HUMAN DEOXYHAEMOGLOBIN AT 1.74 ANGSTROMS RESOLUTION Deposited 1984-03-07 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1–141（141 aa）
Chain C 1–141（141 aa）
Not recorded HEM PROTOPORPHYRIN IX CONTAINING FE × 4 PO4 PHOSPHATE ION × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 1.74 Å
2HHD OXYGEN AFFINITY MODULATION BY THE N-TERMINI OF THE BETA-CHAINS IN HUMAN AND BOVINE HEMOGLOBIN Deposited 1994-09-29 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1–141（141 aa）
Chain C 1–141（141 aa）
Not recorded HEM PROTOPORPHYRIN IX CONTAINING FE × 4 SO4 SULFATE ION × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.20 Å
3HHB THE CRYSTAL STRUCTURE OF HUMAN DEOXYHAEMOGLOBIN AT 1.74 ANGSTROMS RESOLUTION Deposited 1984-03-07 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1–141（141 aa）
Chain C 1–141（141 aa）
Not recorded HEM PROTOPORPHYRIN IX CONTAINING FE × 4 PO4 PHOSPHATE ION × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 1.74 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.