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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：P01990 New Search
3PDB entries
4Biological assembly
6chain/assembly records
Main Difference Dimensions in This Set
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
1A4F BAR-HEADED GOOSE HEMOGLOBIN (OXY FORM) Deposited 1998-01-29 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1–141（141 aa）
Not recorded HEM PROTOPORPHYRIN IX CONTAINING FE × 4 OXY OXYGEN MOLECULE × 4 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.00 Å
1C40 BAR-HEADED GOOSE HEMOGLOBIN (AQUOMET FORM) Deposited 1999-08-03 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1–141（141 aa）
Not recorded HEM PROTOPORPHYRIN IX CONTAINING FE × 4 X-RAY DIFFRACTION
X-ray crystallization conditions pH 6.8；pH 6.80
Resolution 2.30 Å R-free 0.247
1HV4 CRYSTAL STRUCTURE ANALYSIS OF BAR-HEAD GOOSE HEMOGLOBIN (DEOXY FORM) Deposited 2001-01-07 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 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.2；291 K；PEG 6000, potassium phosphate , pH 7.2, VAPOR DIFFUSION, HANGING DROP, temperature 291K
Resolution 2.80 Å R-free 0.243
1HV4 CRYSTAL STRUCTURE ANALYSIS OF BAR-HEAD GOOSE HEMOGLOBIN (DEOXY FORM) Deposited 2001-01-07 Assembly 2 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain E 1–141（141 aa）
Chain G 1–141（141 aa）
Not recorded HEM PROTOPORPHYRIN IX CONTAINING FE × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.2；291 K；PEG 6000, potassium phosphate , pH 7.2, VAPOR DIFFUSION, HANGING DROP, temperature 291K
Resolution 2.80 Å R-free 0.243

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.