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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：P0A7K2 New Search
19PDB entries
19Biological assembly
27chain/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
1CTF STRUCTURE OF THE C-TERMINAL DOMAIN OF THE RIBOSOMAL PROTEIN L7/L12 FROM ESCHERICHIA COLI AT 1.7 ANGSTROMS Deposited 1986-09-02 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 47–120（74 aa）
Not recorded SO4 SULFATE ION × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 1.70 Å
1RQS NMR structure of C-terminal domain of ribosomal protein L7 from E.coli Deposited 2003-12-07 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 47–120（74 aa） Fragment：C-Terminal Domain
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 6.9；303 K；Ionic strength (raw mmCIF value) 0.15；Pressure ambient
NMR sample composition 1mM L7 dimer U-15N; 50mM phosphate buffer; 90% H2O, 10% D2O; 30 C | 90% H2O/10% D2O
NMR sample composition 1mM L7 dimer U-15N; 50mM phosphate buffer; 99.9% D2O; 30 C | 99.9% D2O
NMR sample composition 1mM L7 dimer U-15N; 50mM phosphate buffer; 90% H2O, 10% D2O; 30 C; Tobacco virus alignment medium | 90% H2O/10% D2O
Resolution not provided
1RQT NMR structure of dimeric N-terminal domain of ribosomal protein L7 from E.coli Deposited 2003-12-07 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–37（37 aa） Fragment：N-Terminal Domain
Chain B 1–37（37 aa） Fragment：N-Terminal Domain
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 6.9；303 K；Ionic strength (raw mmCIF value) 0.15；Pressure ambient
NMR sample composition 1mM L7 dimer U-15N; 50mM phosphate buffer; 90% H2O, 10% D2O; 30 C | 90% H2O/10% D2O
NMR sample composition 1mM L7 dimer U-15N; 50mM phosphate buffer; 99.9% D2O; 30 C | 99.9% D2O
Resolution not provided
1RQU NMR structure of L7 dimer from E.coli Deposited 2003-12-07 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–120（120 aa） Fragment：L7 dimer
Chain B 1–120（120 aa） Fragment：L7 dimer
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 6.9；303 K；Ionic strength (raw mmCIF value) 0.15；Pressure ambient
NMR sample composition 1mM L7 dimer U-15N; 50mM phosphate buffer; 90% H2O, 10% D2O; 30 C | 90% H2O/10% D2O
NMR sample composition 1mM L7 dimer U-15N; 50mM phosphate buffer; 99.9% D2O; 30 C | 99.9% D2O
NMR sample composition 1mM L7 dimer U-15N; 50mM phosphate buffer; 90% H2O, 10% D2O; 30 C; Tobacco virus alignment medium | 90% H2O/10% D2O
Resolution not provided
1RQV Spatial model of L7 dimer from E.coli with one hinge region in helical state Deposited 2003-12-07 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–120（120 aa） Fragment：L7 dimer
Chain B 1–120（120 aa） Fragment：L7 dimer
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 6.9；303 K；Ionic strength (raw mmCIF value) 0.15；Pressure ambient
NMR sample composition 1mM L7 dimer U-15N; 50mM phosphate buffer; 90% H2O, 10% D2O; 30 C | 90% H2O/10% D2O
NMR sample composition 1mM L7 dimer U-15N; 50mM phosphate buffer; 99.9% D2O; 30 C | 99.9% D2O
NMR sample composition 1mM L7 dimer U-15N; 50mM phosphate buffer; 90% H2O, 10% D2O; 30 C; Tobacco virus alignment medium | 90% H2O/10% D2O
Resolution not provided
2BCW Coordinates of the N-terminal domain of ribosomal protein L11,C-terminal domain of ribosomal protein L7/L12 and a portion of the G' domain of elongation factor G, as fitted into cryo-em map of an Escherichia coli 70S*EF-G*GDP*fusidic acid complex Deposited 2005-10-19 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain B 53–120（68 aa） Fragment：C-terminal domain
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer 20mM HEPES-KOH (pH 7.5), 6mM MgCl2, and 150 mM NH4Cl, 2mM spermidine, 0.4 mM spermine；pH 7.5；20mM HEPES-KOH (pH 7.5), 6mM MgCl2, and 150 mM NH4Cl, 2mM spermidine, 0.4 mM spermine
cryo-EM vitrification conditions RAPID-FREEZING IN LIQUID ETHANE
Resolution 11.20 Å
3J7Z Structure of the E. coli 50S subunit with ErmCL nascent chain Deposited 2014-08-27 Assembly 1 Protein–RNA Heteromer；Protein × 32 PDB declaration: 35-meric（35） Consistent with all polymers
Chain 6 1–121（121 aa）
Not recorded ERY ERYTHROMYCIN A × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE；Plunged into liquid ethane (FEI VITROBOT MARK IV).
Resolution 3.90 Å
4V4V Structure of a pre-translocational E. coli ribosome obtained by fitting atomic models for RNA and protein components into cryo-EM map EMD-1056 Deposited 2006-05-09 Assembly 1 Protein–RNA Heteromer；Protein × 46 PDB declaration: 52-meric（52） Consistent with all polymers
Chain B3 2–120（119 aa）
Chain B5 2–120（119 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE；rapid-freezing in liquid ethane
Resolution 15.00 Å
4V4W Structure of a SecM-stalled E. coli ribosome complex obtained by fitting atomic models for RNA and protein components into cryo-EM map EMD-1143 Deposited 2006-05-09 Assembly 1 Protein–RNA Heteromer；Protein × 46 PDB declaration: 52-meric（52） Consistent with all polymers
Chain B3 3–121（119 aa）
Chain B5 3–121（119 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE；rapid-freezing in liquid ethane
Resolution 15.00 Å
4V5M tRNA tranlocation on the 70S ribosome: the pre-translocational translocation intermediate TI(PRE) Deposited 2010-10-01 Assembly 1 Protein–RNA Heteromer；Protein × 52 PDB declaration: 57-meric（57） Consistent with all polymers
Chain BL 1–121（121 aa）
Not recorded FUA FUSIDIC ACID × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM vitrification conditions Cryogen ETHANE；VITRIFICATION 1 -- CRYOGEN- ETHANE, INSTRUMENT- VITROBOT (FEI)
Resolution 7.80 Å
4V5N tRNA translocation on the 70S ribosome: the post- translocational translocation intermediate TI(POST) Deposited 2010-10-21 Assembly 1 Protein–RNA Heteromer；Protein × 52 PDB declaration: 57-meric（57） Consistent with all polymers
Chain BL 1–121（121 aa）
Not recorded FUA FUSIDIC ACID × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM vitrification conditions Cryogen ETHANE；VITRIFICATION 1 -- CRYOGEN- ETHANE, INSTRUMENT- VITROBOT (FEI)
Resolution 7.60 Å
4V7B Visualization of two tRNAs trapped in transit during EF-G-mediated translocation Deposited 2013-10-27 Assembly 1 Protein–RNA Heteromer；Protein × 52 PDB declaration: 58-meric（58） Consistent with all polymers
Chain B6 1–121（121 aa）
Not recorded FUA FUSIDIC ACID × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer 80 mM HEPES potassium, 75 mM NH4Cl, 10 mM MgCl2, 6 mM BME；pH 7.6；80 mM HEPES potassium, 75 mM NH4Cl, 10 mM MgCl2, 6 mM BME
cryo-EM vitrification conditions blot for 5-10 seconds before plunging；96 K；Cryogen ETHANE；Blot for 5-10 seconds before plunging into liquid ethane (FEI VITROBOT MARK I)
Resolution 6.80 Å
4V7D Structure of the Ribosome with Elongation Factor G Trapped in the Pre-Translocation State (pre-translocation 70S*tRNA*EF-G structure) Deposited 2013-11-21 Assembly 1 Protein–RNA Heteromer；Protein × 54 PDB declaration: 60-meric（60） Consistent with all polymers
Chain AL 2–121（120 aa）
Not recorded ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer Polymix buffer；pH 7.6；10 mM HEPES-KOH, 5 mM MgCl2, 90 mM NH4Cl, 2 mM spermidine, 0.1 mM spermine, 6 mM BME, 0.5 mM viomycin, 0.5 mM GTP, 0.5 mM fusidic acid
cryo-EM vitrification conditions Freshly glow-disharged grids were loaded into an FEI Mark II Vitrobot and equilibrated to 95% relative humidity at 22 degrees Celsius. 2 microliters of sample was applied through the side port, blotted for 7 seconds with a positional offset of 2, and plunged into liquid ethane.；Cryogen ETHANE；Freshly glow-disharged grids were loaded into an FEI Mark II Vitrobot and equilibrated to 95% relative humidity at 22 degrees Celsius. 2 microliters of sample was applied through the side port, blotted for 7 seconds with a positional offset of 2, and plunged into liquid ethane.
Resolution 7.60 Å
4V89 Crystal Structure of Release Factor RF3 Trapped in the GTP State on a Rotated Conformation of the Ribosome (without viomycin) Deposited 2011-11-17 Assembly 1 Protein–RNA Heteromer；Protein × 54 PDB declaration: 58-meric（58） Consistent with all polymers
Chain BJ 1–121（121 aa）
Chain BK 1–121（121 aa）
Chain BL 1–121（121 aa）
Chain BM 1–121（121 aa）
Not recorded GNP PHOSPHOAMINOPHOSPHONIC ACID-GUANYLATE ESTER × 1 MG MAGNESIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7；295 K；Tris Ac PH.7.0 25-35 mM KCL 6.1% PEG 20000 %1 glycerol 50mM sucrose , VAPOR DIFFUSION, SITTING DROP, temperature 295K
Resolution 3.70 Å R-free 0.290
4V9O Control of ribosomal subunit rotation by elongation factor G Deposited 2013-05-03 Assembly 1 Protein–RNA Heteromer；Protein × 53 PDB declaration: 56-meric（56） Consistent with all polymers
Chain A6 1–121（121 aa）
Not recorded MG MAGNESIUM ION × 187 ZN ZINC ION × 1 GCP PHOSPHOMETHYLPHOSPHONIC ACID GUANYLATE ESTER × 1 X-RAY DIFFRACTION
X-ray crystallization conditions MICROBATCH；pH 6.5；291 K；PEG8k, MPD, KSCN, pH 6.5, microbatch, temperature 291K
X-ray crystallization conditions MICROBATCH；pH 6.5；291 K；PEG8k, MPD, KSCN, pH 6.5, microbatch, temperature 291K
X-ray crystallization conditions MICROBATCH；pH 6.5；291 K；PEG8k, MPD, KSCN, pH 6.5, microbatch, temperature 291K
X-ray crystallization conditions MICROBATCH；pH 6.5；291 K；PEG8k, KSCN, pH 6.5, microbatch, temperature 291K
X-ray crystallization conditions MICROBATCH；pH 6.5；291 K；PEG8k, KSCN, pH 6.5, microbatch, temperature 291K
Resolution 2.90 Å R-free 0.272
5KCS Cryo-EM structure of the Escherichia coli 70S ribosome in complex with antibiotic Evernimycin, mRNA, TetM and P-site tRNA at 3.9A resolution Deposited 2016-06-06 Assembly 1 Protein–RNA Heteromer；Protein × 53 PDB declaration: 58-meric（58） Consistent with all polymers
Chain 1L 1–121（121 aa）
Not recorded EVN (2R,3R,4R,6S)-6-{[(2R,3aR,4R,4'R,5'S,6S,6'R,7S,7aR)-6-{[(2S,3R,4R,5S,6R)-2-{[(2R,3S,4S,5S,6S)-6-({(2R,3aS,3a'R,6S,7R,7' R,7aS,7a'S)-7'-[(2,4-dihydroxy-6-methylbenzoyl)oxy]-7-hydroxyoctahydro-4H-2,4'-spirobi[[1,3]dioxolo[4,5-c]pyran]-6-yl}ox y)-4-hydroxy-5-methoxy-2-(methoxymethyl)tetrahydro-2H-pyran-3-yl]oxy}-3-hydroxy-5-methoxy-6-methyltetrahydro-2H-pyran-4- yl]oxy}-4',7-dihydroxy-4,6',7a-trimethyloctahydro-4H-spiro[1,3-dioxolo[4,5-c]pyran-2,2'-pyran]-5'-yl]oxy}-4-{[(2R,4S,5R, 6S)-5-methoxy-4,6-dimethyl-4-nitrotetrahydro-2H-pyran-2-yl]oxy}-2-methyltetrahydro-2H-pyran-3-yl 3,5-dichloro-4-hydroxy-2-methoxy-6-methylbenzoate (non-preferred name) × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
6I0Y TnaC-stalled ribosome complex with the titin I27 domain folding close to the ribosomal exit tunnel Deposited 2018-10-26 Assembly 1 Protein–RNA Heteromer；Protein × 33 PDB declaration: 36-meric（36） Consistent with all polymers
Chain 6 1–121（121 aa）
Not recorded MG MAGNESIUM ION × 143 ZN ZINC ION × 1 TRP TRYPTOPHAN × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.20 Å
7N2C Elongating 70S ribosome complex in a fusidic acid-stalled intermediate state of translocation bound to EF-G(GDP) (INT2) Deposited 2021-05-28 Assembly 1 Protein–RNA Heteromer；Protein × 55 PDB declaration: 61-meric（61） Consistent with all polymers
Chain LG 1–121（121 aa）
Not recorded PUT 1,4-DIAMINOBUTANE × 21 MG MAGNESIUM ION × 197 ZN ZINC ION × 3 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 SPD SPERMIDINE × 3 FUA FUSIDIC ACID × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.72 Å
8PHJ cA4-bound Cami1 in complex with 70S ribosome Deposited 2023-06-20 Assembly 1 Protein–RNA Heteromer；Protein × 54 PDB declaration: 61-meric（61） Consistent with all polymers
Chain W 2–121（120 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 241 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.67 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.