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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：Q61221 New Search
1PDB entries
1Biological assembly
1chain/assembly records
Main Difference Dimensions in This Set
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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
4ZPR Crystal Structure of the Heterodimeric HIF-1a:ARNT Complex with HRE DNA Deposited 2015-05-08 Assembly 1 Protein–DNA Heteromer；Protein × 2 PDB declaration: tetrameric（4） Consistent with all polymers
Chain B 13–357（345 aa） Fragment：UNP residues 13-357
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6；289 K；100 mM MES, pH 6.0, 100 mM calcium acetate, 15% PEG400
Resolution 3.90 Å R-free 0.341

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.