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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：P05221 New Search
4PDB entries
4Biological assembly
8chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification Different assembly state 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
1EE5 YEAST KARYOPHERIN (IMPORTIN) ALPHA IN A COMPLEX WITH A NUCLEOPLASMIN NLS PEPTIDE Deposited 2000-01-30 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 152–170（19 aa） Fragment：NLS (NUCLEAR LOCALIZATION SEQUENCE)
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；pH 7, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.40 Å R-free 0.265
1EJY MOUSE IMPORTIN ALPHA-NUCLEOPLASMIN NLS PEPTIDE COMPLEX Deposited 2000-03-05 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain N 155–170（16 aa） Fragment：NLS (NUCLEAR LOCALIZATION SIGNAL) BIPARTITE PEPTIDE, RESIDUES 155-170
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；293 K；sodium citrate, Hepes, DTT, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.90 Å R-free 0.268
1K5J The Crystal Structure of Nucleoplasmin-Core Deposited 2001-10-10 Assembly 1 Protein homooligomer Homooligomer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 1–124（124 aa） Fragment：Nucleoplasmin core
Chain B 1–124（124 aa） Fragment：Nucleoplasmin core
Chain C 1–124（124 aa） Fragment：Nucleoplasmin core
Chain D 1–124（124 aa） Fragment：Nucleoplasmin core
Chain E 1–124（124 aa） Fragment：Nucleoplasmin core
Mutation：D27N, N61H Mutation：D27N, N61H Mutation：D27N, N61H Mutation：D27N, N61H Mutation：D27N, N61H No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；295 K；HEPES, magnesium chloride, PEG-400, 2-propanol, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Resolution 2.30 Å R-free 0.252
3UL1 Mouse importin alpha: nucleoplasmin cNLS peptide complex Deposited 2011-11-10 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 153–172（20 aa） Fragment：Nucleoplasmin cNLS peptide, residues 153-172
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.2；293 K；0.79M sodium citrate, 10mM DTT, 0.1M HEPES, pH 7.2, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 1.90 Å R-free 0.222

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.