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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：Q42449 New Search
2PDB entries
2Biological assembly
2chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification 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
1A0K PROFILIN I FROM ARABIDOPSIS THALIANA Deposited 1997-12-02 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–131（131 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions pH 5；2.0 M AMMONIUM SULFATE, 0.1 M CITRATE PH 5.0, 10 MM DTT, 0.2 MM EDTA
Resolution 2.20 Å R-free 0.238
3NUL Profilin I from Arabidopsis thaliana Deposited 1996-11-27 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 2–131（130 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 1 GOL GLYCEROL × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 5；2.0 M AMMONIUM SULFATE, 0.1 M CITRATE, PH 5.0, 10 mM DTT, 0.2 mM EDTA
Resolution 1.60 Å R-free 0.204

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.