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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：P01004 New Search
3PDB entries
3Biological assembly
3chain/assembly records
Main Difference Dimensions in This Set
Different mutation/modification Different assembly state Different experimental method 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
1M8B Solution structure of the C State of turkey ovomucoid at pH 2.5 Deposited 2002-07-24 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 130–185（56 aa） Fragment：RESIDUES 130-185; KAZAL-LIKE 3 (INHIBIT CHYMOTRYPIN, ELASTASE, ETC.)
Mutation：P14D No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 2.5；298 K；Ionic strength (raw mmCIF value) no salt added；Pressure ambient
NMR sample composition 1 mM | 90% H2O/10% D2O
NMR sample composition 1 mM | 100% D2O
Resolution not provided
1M8C SOLUTION STRUCTURE OF THE T State OF TURKEY OVOMUCOID AT PH 2.5 Deposited 2002-07-24 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 130–185（56 aa） Fragment：RESIDUES 130-185; KAZAL-LIKE 3 (INHIBIT CHYMOTRYPIN, ELASTASE, ETC.)
Mutation：P14D No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 2.5；298 K；Ionic strength (raw mmCIF value) no salt added；Pressure ambient
NMR sample composition 1 mM | 90% H2O/10% D2O
NMR sample composition 1 mM | 100% D2O
Resolution not provided
1PPF X-RAY CRYSTAL STRUCTURE OF THE COMPLEX OF HUMAN LEUKOCYTE ELASTASE (PMN ELASTASE) AND THE THIRD DOMAIN OF THE TURKEY OVOMUCOID INHIBITOR Deposited 1991-10-24 Assembly 1 Other combination Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain I 130–185（56 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 1.80 Å

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.