← Back to search

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：H4UQ02 New Search
29PDB entries
29Biological assembly
29chain/assembly records
Main Difference Dimensions in This Set
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
5U9F 3.2 A cryo-EM ArfA-RF2 ribosome rescue complex (Structure II) Deposited 2016-12-16 Assembly 1 Protein–RNA Heteromer；Protein × 54 PDB declaration: 60-meric（60） Consistent with all polymers
Chain M 1–118（118 aa）
Not recorded MG MAGNESIUM ION × 360 ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.20 Å
5U9G 3.2 A cryo-EM ArfA-RF2 ribosome rescue complex (Structure I) Deposited 2016-12-16 Assembly 1 Protein–RNA Heteromer；Protein × 54 PDB declaration: 60-meric（60） Consistent with all polymers
Chain M 1–118（118 aa）
Not recorded MG MAGNESIUM ION × 348 ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.20 Å
6OGF 70S termination complex with RF2 bound to the UGA codon. Partially rotated ribosome with RF2 bound (Structure III). Deposited 2019-04-02 Assembly 1 Protein–RNA Heteromer；Protein × 50 PDB declaration: 55-meric（55） Consistent with all polymers
Chain R 1–118（118 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
6OGG 70S termination complex with RF2 bound to the UGA codon. Rotated ribosome with RF2 bound (Structure IV). Deposited 2019-04-02 Assembly 1 Protein–RNA Heteromer；Protein × 50 PDB declaration: 55-meric（55） Consistent with all polymers
Chain R 1–118（118 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.20 Å
6OGI 70S termination complex with RF2 bound to the UAG codon. Rotated ribosome conformation (Structure V) Deposited 2019-04-02 Assembly 1 Protein–RNA Heteromer；Protein × 49 PDB declaration: 54-meric（54） Consistent with all polymers
Chain R 1–118（118 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
6OM6 Structure of trans-translation inhibitor bound to E. coli 70S ribosome with P site tRNA Deposited 2019-04-18 Assembly 1 Protein–RNA Heteromer；Protein × 49 PDB declaration: 54-meric（54） Consistent with all polymers
Chain r 1–118（118 aa）
Not recorded KKL 4-amino-N-[5-(4-ethynylphenyl)-1,3,4-oxadiazol-2-yl]benzamide × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；Blot time: 3.5 seconds
Resolution 3.10 Å
6VYQ Escherichia coli transcription-translation complex A1 (TTC-A1) containing an 15 nt long mRNA spacer, NusG, and fMet-tRNAs at E-site and P-site Deposited 2020-02-27 Assembly 1 Other combination Heteromer；Protein × 58 PDB declaration: 66-meric（66） Consistent with all polymers
Chain X 1–118（118 aa）
Not recorded MG MAGNESIUM ION × 1 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å
6VYR Escherichia coli transcription-translation complex A1 (TTC-A1) containing an 18 nt long mRNA spacer, NusG, and fMet-tRNAs at E-site and P-site Deposited 2020-02-27 Assembly 1 Other combination Heteromer；Protein × 58 PDB declaration: 66-meric（66） Consistent with all polymers
Chain X 1–118（118 aa）
Not recorded MG MAGNESIUM ION × 1 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
6VYS Escherichia coli transcription-translation complex A1 (TTC-A1) containing a 21 nt long mRNA spacer, NusG, and fMet-tRNAs at E-site and P-site Deposited 2020-02-27 Assembly 1 Other combination Heteromer；Protein × 58 PDB declaration: 66-meric（66） Consistent with all polymers
Chain X 1–118（118 aa）
Not recorded MG MAGNESIUM ION × 1 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å
6VYT Escherichia coli transcription-translation complex A2 (TTC-A2) containing a 15 nt long mRNA spacer, NusG, and fMet-tRNAs at P-site and E-site Deposited 2020-02-27 Assembly 1 Other combination Heteromer；Protein × 55 PDB declaration: 64-meric（64） Consistent with all polymers
Chain X 1–118（118 aa）
Not recorded MG MAGNESIUM ION × 1 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 14.00 Å
6VYW Escherichia coli transcription-translation complex C3 (TTC-C3) containing mRNA with a 27 nt long spacer, NusG, and fMet-tRNAs at E-site and P-site Deposited 2020-02-27 Assembly 1 Other combination Heteromer；Protein × 56 PDB declaration: 65-meric（65） Consistent with all polymers
Chain X 1–118（118 aa）
Not recorded MG MAGNESIUM ION × 1 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 7.00 Å
6VYX Escherichia coli transcription-translation complex C4 (TTC-C4) containing mRNA with a 21 nt long spacer, transcription factor NusG, and fMet-tRNAs at P-site and E-site Deposited 2020-02-27 Assembly 1 Other combination Heteromer；Protein × 56 PDB declaration: 65-meric（65） Consistent with all polymers
Chain X 1–118（118 aa）
Not recorded MG MAGNESIUM ION × 1 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 9.90 Å
6VYY Escherichia coli transcription-translation complex C5 (TTC-C5) containing mRNA with a 21 nt long spacer, NusG, and fMet-tRNAs at E-site and P-site Deposited 2020-02-27 Assembly 1 Other combination Heteromer；Protein × 56 PDB declaration: 65-meric（65） Consistent with all polymers
Chain X 1–118（118 aa）
Not recorded MG MAGNESIUM ION × 1 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 9.90 Å
6VYZ Escherichia coli transcription-translation complex C6 (TTC-C6) containing mRNA with a 21 nt long spacer, NusA, and fMet-tRNAs at E-site and P-site Deposited 2020-02-27 Assembly 1 Other combination Heteromer；Protein × 56 PDB declaration: 65-meric（65） Consistent with all polymers
Chain X 1–118（118 aa）
Not recorded MG MAGNESIUM ION × 1 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 9.90 Å
6VZ2 Escherichia coli transcription-translation complex D1 (TTC-D1) containing mRNA with a 27 nt long spacer, NusG, and fMet-tRNAs at E-site and P-site Deposited 2020-02-27 Assembly 1 Other combination Heteromer；Protein × 56 PDB declaration: 65-meric（65） Consistent with all polymers
Chain X 1–118（118 aa）
Not recorded MG MAGNESIUM ION × 1 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 10.00 Å
6VZ5 Escherichia coli transcription-translation complex D3 (TTC-D3) containing mRNA with a 21 nt long spacer, NusG, and fMet-tRNAs at E-site and P-site Deposited 2020-02-27 Assembly 1 Other combination Heteromer；Protein × 56 PDB declaration: 65-meric（65） Consistent with all polymers
Chain X 1–118（118 aa）
Not recorded MG MAGNESIUM ION × 1 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 8.90 Å
6X6T Cryo-EM structure of an Escherichia coli coupled transcription-translation complex B1 (TTC-B1) containing an mRNA with a 24 nt long spacer, transcription factors NusA and NusG, and fMet-tRNAs at P-site and E-site Deposited 2020-05-29 Assembly 1 Other combination Heteromer；Protein × 60 PDB declaration: 68-meric（68） Consistent with all polymers
Chain X 1–118（118 aa）
Not recorded MG MAGNESIUM ION × 1 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.20 Å
6X7F Cryo-EM structure of an Escherichia coli coupled transcription-translation complex B2 (TTC-B2) containing an mRNA with a 24 nt long spacer, transcription factors NusA and NusG, and fMet-tRNAs at P-site and E-site Deposited 2020-05-29 Assembly 1 Other combination Heteromer；Protein × 60 PDB declaration: 68-meric（68） Consistent with all polymers
Chain X 1–118（118 aa）
Not recorded MG MAGNESIUM ION × 1 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.50 Å
6X7K Cryo-EM structure of an Escherichia coli coupled transcription-translation complex B3 (TTC-B3) containing an mRNA with a 24 nt long spacer, transcription factors NusA and NusG, and fMet-tRNAs at P-site and E-site Deposited 2020-05-30 Assembly 1 Other combination Heteromer；Protein × 60 PDB declaration: 68-meric（68） Consistent with all polymers
Chain X 1–118（118 aa）
Not recorded MG MAGNESIUM ION × 1 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
6X9Q Cryo-EM structure of an Escherichia coli coupled transcription-translation complex B3 (TTC-B3) containing an mRNA with a 27 nt long spacer, transcription factors NusA and NusG, and fMet-tRNAs at P-site and E-site Deposited 2020-06-03 Assembly 1 Other combination Heteromer；Protein × 60 PDB declaration: 68-meric（68） Consistent with all polymers
Chain X 1–118（118 aa）
Not recorded MG MAGNESIUM ION × 1 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.80 Å
6XDQ Cryo-EM structure of an Escherichia coli coupled transcription-translation complex B3 (TTC-B3) containing an mRNA with a 30 nt long spacer, transcription factors NusA and NusG, and fMet-tRNAs at P-site and E-site Deposited 2020-06-11 Assembly 1 Other combination Heteromer；Protein × 60 PDB declaration: 68-meric（68） Consistent with all polymers
Chain X 1–118（118 aa）
Not recorded MG MAGNESIUM ION × 1 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å
6XDR Escherichia coli transcription-translation complex B (TTC-B) containing an 27 nt long mRNA spacer, NusG, and fMet-tRNAs at E-site and P-site Deposited 2020-06-11 Assembly 1 Other combination Heteromer；Protein × 59 PDB declaration: 67-meric（67） Consistent with all polymers
Chain X 1–118（118 aa）
Not recorded MG MAGNESIUM ION × 1 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.70 Å
6XGF Escherichia coli transcription-translation complex B (TTC-B) containing an 30 nt long mRNA spacer, NusG, and fMet-tRNAs at E-site and P-site Deposited 2020-06-17 Assembly 1 Other combination Heteromer；Protein × 59 PDB declaration: 67-meric（67） Consistent with all polymers
Chain X 1–118（118 aa）
Not recorded MG MAGNESIUM ION × 1 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 5.00 Å
6XII Escherichia coli transcription-translation complex B (TTC-B) containing an 24 nt long mRNA spacer, NusG, and fMet-tRNAs at E-site and P-site Deposited 2020-06-20 Assembly 1 Other combination Heteromer；Protein × 59 PDB declaration: 67-meric（67） Consistent with all polymers
Chain X 1–118（118 aa）
Not recorded MG MAGNESIUM ION × 1 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 7.00 Å
6XIJ Escherichia coli transcription-translation complex A (TTC-A) containing an 24 nt long mRNA spacer, NusG, and fMet-tRNAs at E-site and P-site Deposited 2020-06-20 Assembly 1 Other combination Heteromer；Protein × 58 PDB declaration: 66-meric（66） Consistent with all polymers
Chain X 1–118（118 aa）
Not recorded MG MAGNESIUM ION × 1 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 8.00 Å
7K00 Structure of the Bacterial Ribosome at 2 Angstrom Resolution Deposited 2020-09-02 Assembly 1 Protein–RNA Heteromer；Protein × 49 PDB declaration: 56-meric（56） Consistent with all polymers
Chain M 1–118（118 aa）
Not recorded PAR PAROMOMYCIN × 1 MG MAGNESIUM ION × 309 SPD SPERMIDINE × 16 SPM SPERMINE × 1 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 1.98 Å
7S1G wild-type Escherichia coli stalled ribosome with antibiotic linezolid Deposited 2021-09-02 Assembly 1 Protein–RNA Heteromer；Protein × 50 PDB declaration: 55-meric（55） Consistent with all polymers
Chain u 1–118（118 aa）
Not recorded MG MAGNESIUM ION × 196 ZLD N-{[(5S)-3-(3-fluoro-4-morpholin-4-ylphenyl)-2-oxo-1,3-oxazolidin-5-yl]methyl}acetamide × 1 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.48 Å
7S1H Wild-type Escherichia coli ribosome with antibiotic linezolid Deposited 2021-09-02 Assembly 1 Protein–RNA Heteromer；Protein × 49 PDB declaration: 52-meric（52） Consistent with all polymers
Chain u 1–118（118 aa）
Not recorded MG MAGNESIUM ION × 206 ZLD N-{[(5S)-3-(3-fluoro-4-morpholin-4-ylphenyl)-2-oxo-1,3-oxazolidin-5-yl]methyl}acetamide × 1 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.35 Å
7SA4 Damaged 70S ribosome with PrfH bound Deposited 2021-09-22 Assembly 1 Protein–RNA Heteromer；Protein × 52 PDB declaration: 58-meric（58） Consistent with all polymers
Chain r 1–118（118 aa）
Not recorded MG MAGNESIUM ION × 439 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.55 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.