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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：A0A5Q2GFB5 New Search
33PDB entries
33Biological assembly
33chain/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
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 M 1–179（179 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 M 1–179（179 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 M 1–179（179 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 M 1–179（179 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
6VYU Escherichia coli transcription-translation complex C2 (TTC-C2) containing a 27 nt long mRNA spacer Deposited 2020-02-27 Assembly 1 Other combination Heteromer；Protein × 56 PDB declaration: 65-meric（65） Consistent with all polymers
Chain M 1–179（179 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
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 M 1–179（179 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 M 1–179（179 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 M 1–179（179 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 M 1–179（179 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 M 1–179（179 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 M 1–179（179 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
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 M 1–179（179 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 M 1–179（179 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 M 1–179（179 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 M 1–179（179 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
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 M 1–179（179 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 M 1–179（179 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 M 1–179（179 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
6YSR Structure of the P+9 stalled ribosome complex Deposited 2020-04-23 Assembly 1 Protein–RNA Heteromer；Protein × 52 PDB declaration: 57-meric（57） Consistent with all polymers
Chain g 1–179（179 aa）
Not recorded MG MAGNESIUM ION × 332 ZN ZINC ION × 2 CL CHLORIDE ION × 1 NA SODIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4；50 mM HEPES, 30 mM KCl, 7 mM MgCl2
cryo-EM vitrification conditions Cryogen ETHANE；Manual blotting & plunge-freezing
Resolution 3.10 Å
6YSS Structure of the P+9 ArfB-ribosome complex in the post-hydrolysis state Deposited 2020-04-23 Assembly 1 Protein–RNA Heteromer；Protein × 53 PDB declaration: 58-meric（58） Consistent with all polymers
Chain g 1–179（179 aa）
Not recorded MG MAGNESIUM ION × 387 ZN ZINC ION × 2 NA SODIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4；50 mM HEPES, 30 mM KCl, 7 mM MgCl2
cryo-EM vitrification conditions Cryogen ETHANE；Manual blotting & plunge-freezing
Resolution 2.60 Å
6YST Structure of the P+9 ArfB-ribosome complex with P/E hybrid tRNA in the post-hydrolysis state Deposited 2020-04-23 Assembly 1 Protein–RNA Heteromer；Protein × 53 PDB declaration: 58-meric（58） Consistent with all polymers
Chain g 1–179（179 aa）
Not recorded MG MAGNESIUM ION × 253 ZN ZINC ION × 2 NA SODIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4；50 mM HEPES, 30 mM KCl, 7 mM MgCl2
cryo-EM vitrification conditions Cryogen ETHANE；Manual blotting & plunge-freezing
Resolution 3.20 Å
6YSU Structure of the P+0 ArfB-ribosome complex in the post-hydrolysis state Deposited 2020-04-23 Assembly 1 Protein–RNA Heteromer；Protein × 52 PDB declaration: 57-meric（57） Consistent with all polymers
Chain g 1–179（179 aa）
Not recorded MG MAGNESIUM ION × 356 ZN ZINC ION × 1 NA SODIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4；50 mM HEPES, 30 mM KCl, 7 mM MgCl2, 0.1 % w/v DDM
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å
7AF3 Bacterial 30S ribosomal subunit assembly complex state M (head domain) Deposited 2020-09-19 Assembly 1 Protein–RNA Heteromer；Protein × 8 PDB declaration: nonameric（9） Consistent with all polymers
Chain G 1–179（179 aa）
Not recorded MG MAGNESIUM ION × 51 ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.82 Å
7AF5 Bacterial 30S ribosomal subunit assembly complex state I (head domain) Deposited 2020-09-19 Assembly 1 Protein–RNA Heteromer；Protein × 8 PDB declaration: nonameric（9） Consistent with all polymers
Chain G 1–179（179 aa）
Not recorded MG MAGNESIUM ION × 52 ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.96 Å
7AF8 Bacterial 30S ribosomal subunit assembly complex state E (head domain) Deposited 2020-09-19 Assembly 1 Protein–RNA Heteromer；Protein × 8 PDB declaration: nonameric（9） Consistent with all polymers
Chain G 1–179（179 aa）
Not recorded MG MAGNESIUM ION × 51 ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.75 Å
7AFA Bacterial 30S ribosomal subunit assembly complex state F (head domain) Deposited 2020-09-19 Assembly 1 Protein–RNA Heteromer；Protein × 8 PDB declaration: nonameric（9） Consistent with all polymers
Chain G 1–179（179 aa）
Not recorded MG MAGNESIUM ION × 25 ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.95 Å
7AFD Bacterial 30S ribosomal subunit assembly complex state A (head domain) Deposited 2020-09-19 Assembly 1 Protein–RNA Heteromer；Protein × 8 PDB declaration: nonameric（9） Consistent with all polymers
Chain G 1–179（179 aa）
Not recorded MG MAGNESIUM ION × 22 ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.44 Å
7AFH Bacterial 30S ribosomal subunit assembly complex state C (head domain) Deposited 2020-09-19 Assembly 1 Protein–RNA Heteromer；Protein × 8 PDB declaration: nonameric（9） Consistent with all polymers
Chain G 1–179（179 aa）
Not recorded MG MAGNESIUM ION × 11 ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.59 Å
7AFK Bacterial 30S ribosomal subunit assembly complex state D (head domain) Deposited 2020-09-19 Assembly 1 Protein–RNA Heteromer；Protein × 8 PDB declaration: nonameric（9） Consistent with all polymers
Chain G 1–179（179 aa）
Not recorded MG MAGNESIUM ION × 12 ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.90 Å
7AFN Bacterial 30S ribosomal subunit assembly complex state B (head domain) Deposited 2020-09-19 Assembly 1 Protein–RNA Heteromer；Protein × 8 PDB declaration: nonameric（9） Consistent with all polymers
Chain G 1–179（179 aa）
Not recorded MG MAGNESIUM ION × 11 ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.86 Å
7CPJ ycbZ-stalled 70S ribosome Deposited 2020-08-07 Assembly 1 Protein–RNA Heteromer；Protein × 51 PDB declaration: 56-meric（56） Consistent with all polymers
Chain g 1–179（179 aa）
Not recorded ILE ISOLEUCINE × 1 PRO PROLINE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.30 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 G 1–179（179 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
7NAX Complete Bacterial 30S ribosomal subunit assembly complex state I (Consensus Refinement) Deposited 2021-01-25 Assembly 1 Protein–RNA Heteromer；Protein × 19 PDB declaration: eicosameric（20） Consistent with all polymers
Chain G 1–179（179 aa）
Not recorded MG MAGNESIUM ION × 181 ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.96 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.