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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：P00045 New Search
4PDB entries
4Biological assembly
4chain/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
1YEA STRUCTURE DETERMINATION AND ANALYSIS OF YEAST ISO-2-CYTOCHROME C AND A COMPOSITE MUTANT PROTEIN Deposited 1991-10-29 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 2–113（112 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 2 HEC HEME C × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 1.90 Å
1YEB STRUCTURE DETERMINATION AND ANALYSIS OF YEAST ISO-2-CYTOCHROME C AND A COMPOSITE MUTANT PROTEIN Deposited 1991-10-29 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 6–111（106 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 2 HEC HEME C × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 1.95 Å
1YTC THERMODYNAMIC CYCLES AS PROBES OF STRUCTURE-FUNCTION RELATIONSHIPS IN UNFOLDED PROTEINS Deposited 1995-07-03 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 2–113（112 aa）
Mutation：N52I Non-standard monomer：Yes (specific site not provided by mmCIF) SO4 SULFATE ION × 1 HEC HEME C × 1 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 1.80 Å
3CXH Structure of yeast complex III with isoform-2 cytochrome c bound and definition of a minimal core interface for electron transfer. Deposited 2008-04-24 Assembly 1 Other combination Heteromer；Protein × 23 PDB declaration: 23-meric（23） Consistent with protein count
Chain W 2–113（112 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) UMQ UNDECYL-MALTOSIDE × 2 HEM PROTOPORPHYRIN IX CONTAINING FE × 7 SMA STIGMATELLIN A × 2 8PE (2R)-3-{[(S)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-(tetradecanoyloxy)propyl octadecanoate × 2 CN6 (2R,5R,11S,14R)-2-(butanoyloxy)-5,8,11-trihydroxy-5,11-dioxido-16-oxo-14-[(propanoyloxy)methyl]-4,6,10,12,15-pentaoxa-5,11-diphosphanonadec-1-yl undecanoate × 2 9PE (1R)-2-{[(S)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-1-[(heptanoyloxy)methyl]ethyl octadecanoate × 2 7PH (1R)-2-(dodecanoyloxy)-1-[(phosphonooxy)methyl]ethyl tetradecanoate × 2 FES FE2/S2 (INORGANIC) CLUSTER × 2 6PH (1R)-2-(phosphonooxy)-1-[(tridecanoyloxy)methyl]ethyl pentadecanoate × 2 X-RAY DIFFRACTION
X-ray crystallization conditions Microbatch (Paraffin oil)；pH 7.5；277 K；1M Sucrose, 10% DMSO, 20mM Tris pH 7.5, 80mM NaCl, 0.05 % UM, 1 M stigmatellin, 5% PEG 4000, Microbatch (Paraffin oil), temperature 277K
Resolution 2.50 Å R-free 0.256

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.