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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：V0YYV3 New Search
8PDB entries
8Biological assembly
8chain/assembly records
Main Difference Dimensions in This Set
Different construct 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
6VU3 Cryo-EM structure of Escherichia coli transcription-translation complex A (TTC-A) containing mRNA with a 12 nt long spacer Deposited 2020-02-14 Assembly 1 Other combination Heteromer；Protein × 58 PDB declaration: 66-meric（66） Consistent with all polymers
Chain g 1–66（66 aa）
Not recorded MG MAGNESIUM ION × 1 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 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 g 1–70（70 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
6VZ3 Escherichia coli transcription-translation complex D2 (TTC-D2) containing mRNA with a 27 nt long spacer Deposited 2020-02-27 Assembly 1 Other combination Heteromer；Protein × 56 PDB declaration: 65-meric（65） Consistent with all polymers
Chain g 1–66（66 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
6VZ7 Escherichia coli transcription-translation complex C1 (TTC-C1) containing a 27 nt long mRNA spacer, 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 g 1–66（66 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
6VZJ Escherichia coli transcription-translation complex A1 (TTC-A1) containing mRNA with a 15 nt long spacer, fMet-tRNAs at E-site and P-site, and lacking transcription factor NusG Deposited 2020-02-28 Assembly 1 Other combination Heteromer；Protein × 57 PDB declaration: 65-meric（65） Consistent with all polymers
Chain g 1–66（66 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 4.10 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 6 1–70（70 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
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 6 1–70（70 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
7TOS E. coli 70S ribosomes bound with the ALS/FTD-associated dipeptide repeat protein PR20 Deposited 2022-01-24 Assembly 1 Protein–RNA Heteromer；Protein × 53 PDB declaration: 56-meric（56） Consistent with all polymers
Chain L31 1–66（66 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 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.