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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：P13489 New Search
4PDB entries
5Biological assembly
8chain/assembly records
Main Difference Dimensions in This Set
Different construct 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
1A4Y RIBONUCLEASE INHIBITOR-ANGIOGENIN COMPLEX Deposited 1998-02-08 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1–460（460 aa）
Chain D 1–460（460 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions pH 4.2；THE COMPLEX WAS CRYSTALLIZED FROM 10% PEG4000, 20MM SODIUM CITRATE (PH 4.2), 0.1 AMMONIUM SULPHATE AND 25 MM DTT.
Resolution 2.00 Å R-free 0.286
1Z7X X-ray structure of human ribonuclease inhibitor complexed with ribonuclease I Deposited 2005-03-28 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain W 1–460（460 aa）
Chain Y 1–460（460 aa）
Not recorded CIT CITRIC ACID × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 4.2；293 K；10% MEPEG 2000, 0.020 M SODIUM CITRATE, 0.025 M DTT, 0.001 M AMMONIUM SULFATE, vapor diffusion, HANGING DROP, temperature 293K, pH 4.2
Resolution 1.95 Å R-free 0.236
2BEX Crystal structure of Placental Ribonuclease Inhibitor in complex with Human Eosinophil Derived Neurotoxin at 2A resolution Deposited 2004-12-01 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–460（460 aa）
Not recorded GOL GLYCEROL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7；1M SODIUM MALONATE, PH 7.0
Resolution 1.99 Å R-free 0.243
2BEX Crystal structure of Placental Ribonuclease Inhibitor in complex with Human Eosinophil Derived Neurotoxin at 2A resolution Deposited 2004-12-01 Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 1–460（460 aa）
Not recorded MAK ALPHA-KETOMALONIC ACID × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7；1M SODIUM MALONATE, PH 7.0
Resolution 1.99 Å R-free 0.243
2Q4G Ensemble refinement of the protein crystal structure of human ribonuclease inhibitor complexed with ribonuclease I Deposited 2007-05-31 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain W 1–461（461 aa）
Chain Y 1–461（461 aa）
Not recorded CIT CITRIC ACID × 1 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 1.95 Å R-free 0.224

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.