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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：Q56312 New Search
10PDB entries
12Biological assembly
14chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification Different assembly state Different ligand/ion 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
1TMY CHEY FROM THERMOTOGA MARITIMA (APO-I) Deposited 1997-05-16 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–120（120 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions pH 8.5；PROTEIN WAS CRYSTALLIZED FROM 0.1M TRIS BUFFER (PH 8.5) AND 1.8M AMMONIUM PHOSPHATE
Resolution 1.90 Å
1U0S Chemotaxis kinase CheA P2 domain in complex with response regulator CheY from the thermophile thermotoga maritima Deposited 2004-07-14 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain Y 2–119（118 aa） Fragment：response regulatory domain, CheY response regulator
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；298 K；25-30% PEG 12K, 0.1M Hepes, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K
Resolution 1.90 Å R-free 0.253
2LLE Computational design of an eight-stranded (beta/alpha)-barrel from fragments of different folds Deposited 2011-11-07 Assembly 1 Insufficient information Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–11（11 aa）
Chain A 34–103（70 aa）
Mutation：R4I, D78G, I95L, L201A,V213G Mutation：R4I, D78G, I95L, L201A,V213G No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 7.5；313 K；Ionic strength (raw mmCIF value) 350；Pressure ambient
NMR sample composition 0.5 mM [U-100% 15N] CheYHisF-sfr_RM, 50 mM potassium phosphate, 300 mM potassium chloride, 90% H2O/10% D2O | 90% H2O/10% D2O
NMR sample composition 0.5 mM [U-100% 13C; U-100% 15N] CheYHisF-sfr_RM, 50 mM potassium phosphate, 300 mM potassium chloride, 90% H2O/10% D2O | 90% H2O/10% D2O
Resolution not provided
2TMY CHEY FROM THERMOTOGA MARITIMA (APO-II) Deposited 1997-05-19 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–120（120 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions pH 4.6；0.2M AMMONIUM SULFATE, 0.1M ACETATE BUFFER (PH 4.6), 30% PEG 4000, 15MM MGCL2
Resolution 2.30 Å
3TMY CHEY FROM THERMOTOGA MARITIMA (MN-III) Deposited 1997-06-04 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–120（120 aa）
Not recorded MN MANGANESE (II) ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7；0.2M AMMONIUM SULFATE, 0.1M HEPES BUFFER (PH 7.0), 25% PEG 4000, 15MM MANGANESE CHLORIDE
Resolution 2.20 Å
3TMY CHEY FROM THERMOTOGA MARITIMA (MN-III) Deposited 1997-06-04 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 1–120（120 aa）
Not recorded MN MANGANESE (II) ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7；0.2M AMMONIUM SULFATE, 0.1M HEPES BUFFER (PH 7.0), 25% PEG 4000, 15MM MANGANESE CHLORIDE
Resolution 2.20 Å
4IGA The crystal structure of an activated Thermotoga maritima CheY with N-terminal region of FliM Deposited 2012-12-17 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–120（120 aa）
Not recorded MG MAGNESIUM ION × 1 BEF BERYLLIUM TRIFLUORIDE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；298 K；30% (w/v) PEG 4000, 0.1M TRIS pH 8.5, 0.2M sodium acetate, 0.2M lithium sulfate, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 1.73 Å R-free 0.276
4QYW Structure of phosphono-CheY from T.maritima Deposited 2014-07-25 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 2–120（119 aa）
Mutation：D54(CYQ), C81A Non-standard monomer：Yes (specific site not provided by mmCIF) No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.5；298 K；100mM acetate, pH 5.5, 350 uM Sc(ClO4)3, 0.02% azide, 150 mM sodium malonate, 19% PeEG 6000., VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 1.60 Å R-free 0.268
4TMY CHEY FROM THERMOTOGA MARITIMA (MG-IV) Deposited 1997-06-06 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 1–120（120 aa）
Not recorded MG MAGNESIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7；0.2M AMMONIUM SULFATE, 0.1M HEPES BUFFER (PH 7.0), 25% PEG 4000, 15MM MAGNESIUM CHLORIDE
Resolution 2.80 Å
4TMY CHEY FROM THERMOTOGA MARITIMA (MG-IV) Deposited 1997-06-06 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–120（120 aa）
Not recorded MG MAGNESIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7；0.2M AMMONIUM SULFATE, 0.1M HEPES BUFFER (PH 7.0), 25% PEG 4000, 15MM MAGNESIUM CHLORIDE
Resolution 2.80 Å
6C40 CheY41PyTyrD54K from Thermotoga maritima Deposited 2018-01-11 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 2–119（118 aa）
Chain D 2–119（118 aa）
Mutation：E41PyTyr, D54K Non-standard monomer：Yes (specific site not provided by mmCIF) Mutation：E41PyTyr, D54K Non-standard monomer：Yes (specific site not provided by mmCIF) CU COPPER (II) ION × 6 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；HEPES pH 7, ammonium sulfate, PEG 4000
Resolution 2.70 Å R-free 0.295
8Q52 A PBP-like protein built from fragments of different folds Deposited 2023-08-08 Assembly 1 Insufficient information Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 5–105（101 aa）
Not recorded SO4 SULFATE ION × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；277 K；30% PEG 4000, 0.1M Tris.HCl, 0.3M Li sulfate
Resolution 2.15 Å R-free 0.253

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.