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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：P81288 New Search
4PDB entries
4Biological assembly
4chain/assembly records
Main Difference Dimensions in This Set
Different construct 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
1C05 SOLUTION STRUCTURE OF RIBOSOMAL PROTEIN S4 DELTA 41, REFINED WITH DIPOLAR COUPLINGS (MINIMIZED AVERAGE STRUCTURE) Deposited 1999-07-14 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 41–198（158 aa） Fragment：S4 DELTA 41 (S4 RESIDUES 42-200)
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 5.4；310 K；Ionic strength (raw mmCIF value) 250 mM KCl；Pressure 1
NMR measurement conditions pH 6；310 K；Ionic strength (raw mmCIF value) 80 mM KCl；Pressure 1
NMR measurement conditions pH 6.5；310 K；Ionic strength (raw mmCIF value) 300 mM KCl；Pressure 1
NMR sample composition 1.1 mM S4 delta 41, U-15N,13C; 20 mM d4-acetate pH 5.4, 250 mM KCl, 0.1 mM sodium azide | 94% H2O, 6% D2O
NMR sample composition 0.8 mM S4 delta 41, U-15N; 20 mM d4-acetate pH 5.4, 250 mM KCl, 0.1 mM sodium azide | 94% H2O, 6% D2O
NMR sample composition 0.45 mM S4 delta 41, U-15N,13C; 20 mM d4-acetate pH 5.4, 250 mM KCl | 99.9% D2O
NMR sample composition 0.62 mM S4 delta 41, 10% 13C; 20 mM d4-acetate pH 5.4, 250 mM KCl | 99.9% D2O
NMR sample composition 0.10 mM S4 delta 41, U-15N; 7 mM d4-acetate pH 5.4, 7 mM KH2PO4 pH 6.5, 80 mM KCl, 5% w/v DMPC:DHPC (3:1) | 93% H2O/7% D2O
NMR sample composition 0.21 mM S4 delta 41, U-15N, 85% 2H; 15N,13C,1H methionine; epsilon-13C, 1H tyrsoine; beta,gamma,delta 2H proline; 10 mM KH2PO4 pH 6.5, 300 mM KCl, 0.2 mM sodium azide, 2.5 mg/ml Pf1 | 94% H2O, 6% D2O
Resolution not provided
1C06 SOLUTION STRUCTURE OF RIBOSOMAL PROTEIN S4 DELTA 41, REFINED WITH DIPOLAR COUPLINGS (ENSEMBLE OF 16 STRUCTURES) Deposited 1999-07-14 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 41–198（158 aa） Fragment：S4 DELTA 41 (S4 RESIDUES 42-200)
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 5.4；310 K；Ionic strength (raw mmCIF value) 250 mM KCL；Pressure AMBIENT
NMR measurement conditions pH 6；310 K；Ionic strength (raw mmCIF value) 80 mM KCL；Pressure AMBIENT
NMR measurement conditions pH 6.5；310 K；Ionic strength (raw mmCIF value) 300 mM KCL；Pressure AMBIENT
NMR sample composition 1.1 MM S4 DELTA 41, U-15N,13C; 20 MM D4-ACETATE PH 5.4, 250 MM KCL, 0.1 MM SODIUM AZIDE | 94% H2O, 6% D2O
NMR sample composition 0.8 MM S4 DELTA 41, U-15N; 20 MM D4-ACETATE PH 5.4, 250 MM KCL, 0.1 MM SODIUM AZIDE | 94% H2O, 6% D2O
NMR sample composition 0.45 MM S4 DELTA 41, U-15N,13C; 20 MM D4-ACETATE PH 5.4, 250 MM KCL | 99.9% D2O
NMR sample composition 0.62 MM S4 DELTA 41, 10% 13C; 20 MM D4-ACETATE PH 5.4, 250 MM KCL | 99.9% D2O
NMR sample composition 0.10 MM S4 DELTA 41, U-15N; 7 MM D4-ACETATE PH 5.4, 7 MM KH2PO4 PH 6.5, 80 MM KCL, 5% W/V DMPC:DHPC (3:1) | 93% H2O/7% D2O
NMR sample composition 0.21 MM S4 DELTA 41, U-15N, 85% 2H; 15N,13C,1H METHIONINE; EPSILON-13C,1H TYROSINE; BETA,GAMMA,DELTA 2H PROLINE; 10 MM KH2PO4 PH 6.5, 300 MM KCL, 0.2 MM SODIUM AZIDE, 2.5 MG/ML PF1 | 94% H2O, 6% D2O
Resolution not provided
1EG0 FITTING OF COMPONENTS WITH KNOWN STRUCTURE INTO AN 11.5 A CRYO-EM MAP OF THE E.COLI 70S RIBOSOME Deposited 2000-02-11 Assembly 1 Protein–RNA Heteromer；Protein × 11 PDB declaration: pentadecameric（15） Consistent with all polymers
Chain A 41–199（159 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6；20 mM Hepes, 6 mM Mg(CH3COO)2 150 mM NH4Cl, 4 mM
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 11.50 Å
1QD7 PARTIAL MODEL FOR 30S RIBOSOMAL SUBUNIT Deposited 1999-07-09 Assembly 1 Protein–RNA Heteromer；Protein × 8 PDB declaration: decameric（10） Consistent with all polymers
Chain C 41–198（158 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；277 K；VAPOUR DIFFUSION AT 277 K, MPD, VAPOR DIFFUSION
Resolution 5.50 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.