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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：P25963 New Search
4PDB entries
5Biological assembly
5chain/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
1IKN IKAPPABALPHA/NF-KAPPAB COMPLEX Deposited 1998-11-13 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain D 73–302（230 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions pH 7；pH 7.00
Resolution 2.30 Å R-free 0.277
1NFI I-KAPPA-B-ALPHA/NF-KAPPA-B COMPLEX Deposited 1998-08-25 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain F 70–282（213 aa） Fragment：ANKYRIN
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions pH 5；pH 5.0
Resolution 2.70 Å R-free 0.265
1NFI I-KAPPA-B-ALPHA/NF-KAPPA-B COMPLEX Deposited 1998-08-25 Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain E 70–282（213 aa） Fragment：ANKYRIN
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions pH 5；pH 5.0
Resolution 2.70 Å R-free 0.265
6Y1J 14-3-3 sigma in complex with IkappaBalpha pS63 peptide Deposited 2020-02-12 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain P 57–69（13 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) CA CALCIUM ION × 4 CL CHLORIDE ION × 2 MG MAGNESIUM ION × 2 GOL GLYCEROL × 14 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；277 K；0.095 M Na-HEPES pH 7.1, 27% PEG400, 0.19 M Calcium chloride, 5% Glycerol
Resolution 1.13 Å R-free 0.183
9T9W Crystal structure of beta-TrCP bound by diphosphorylated I-kappa-B-alpha degron peptide Deposited 2025-11-17 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain C 28–39（12 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) EDO 1,2-ETHANEDIOL × 6 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；18% PEG8K
Resolution 1.16 Å R-free 0.213

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.