← 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：I2XAW2 New Search
15PDB entries
15Biological assembly
15chain/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 y 2–115（114 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 y 1–115（115 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
6WD2 Cryo-EM of elongating ribosome with EF-Tu*GTP elucidates tRNA proofreading (Cognate Structure II-A) Deposited 2020-03-31 Assembly 1 Protein–RNA Heteromer；Protein × 52 PDB declaration: 59-meric（59） Consistent with all polymers
Chain p 2–115（114 aa）
Not recorded FME N-FORMYLMETHIONINE × 1 PHE PHENYLALANINE × 1 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.60 Å
6WD7 Cryo-EM of elongating ribosome with EF-Tu*GTP elucidates tRNA proofreading (Cognate Structure II-D) Deposited 2020-03-31 Assembly 1 Protein–RNA Heteromer；Protein × 52 PDB declaration: 59-meric（59） Consistent with all polymers
Chain p 2–115（114 aa）
Not recorded FME N-FORMYLMETHIONINE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
6WD9 Cryo-EM of elongating ribosome with EF-Tu*GTP elucidates tRNA proofreading (Cognate Structure III-B) Deposited 2020-03-31 Assembly 1 Protein–RNA Heteromer；Protein × 52 PDB declaration: 59-meric（59） Consistent with all polymers
Chain p 2–115（114 aa）
Not recorded FME N-FORMYLMETHIONINE × 1 PHE PHENYLALANINE × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å
6WDA Cryo-EM of elongating ribosome with EF-Tu*GTP elucidates tRNA proofreading (Cognate Structure III-C) Deposited 2020-03-31 Assembly 1 Protein–RNA Heteromer；Protein × 52 PDB declaration: 59-meric（59） Consistent with all polymers
Chain p 2–115（114 aa）
Not recorded FME N-FORMYLMETHIONINE × 1 PHE PHENYLALANINE × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
7M5D Cryo-EM structure of a non-rotated E.coli 70S ribosome in complex with RF3-GTP, RF1 and P-tRNA (state I) Deposited 2021-03-23 Assembly 1 Protein–RNA Heteromer；Protein × 54 PDB declaration: 59-meric（59） Consistent with all polymers
Chain P 2–115（114 aa）
Not recorded ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.80 Å
7NSO Structure of ErmDL-Erythromycin-stalled 70S E. coli ribosomal complex with P-tRNA Deposited 2021-03-08 Assembly 1 Protein–RNA Heteromer；Protein × 50 PDB declaration: 55-meric（55） Consistent with all polymers
Chain P 2–115（114 aa）
Not recorded ERY ERYTHROMYCIN A × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 2.90 Å
7NSP Structure of ErmDL-Erythromycin-stalled 70S E. coli ribosomal complex with A and P-tRNA Deposited 2021-03-08 Assembly 1 Protein–RNA Heteromer；Protein × 50 PDB declaration: 56-meric（56） Consistent with all polymers
Chain P 2–115（114 aa）
Not recorded ERY ERYTHROMYCIN A × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 3.50 Å
7NSQ Structure of ErmDL-Telithromycin-stalled 70S E. coli ribosomal complex with A and P-tRNA Deposited 2021-03-08 Assembly 1 Protein–RNA Heteromer；Protein × 50 PDB declaration: 56-meric（56） Consistent with all polymers
Chain P 2–115（114 aa）
Not recorded TEL TELITHROMYCIN × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 3.10 Å
7NWW CspA-27 cotranslational folding intermediate 1 Deposited 2021-03-17 Assembly 1 Protein–RNA Heteromer；Protein × 50 PDB declaration: 55-meric（55） Consistent with all polymers
Chain O 2–115（114 aa）
Not recorded MG MAGNESIUM ION × 413 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；50 mM Tris-HCl, 70 mM NH4Cl, 30 mM KCl, 3.5 mM MgCl2, 8 mM putrescine, 0.5 mM spermidine, 1 mM DTT, 1 mM GTP, pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.05 Å
7OIF CspA-27 cotranslational folding intermediate 2 Deposited 2021-05-11 Assembly 1 Protein–RNA Heteromer；Protein × 50 PDB declaration: 55-meric（55） Consistent with all polymers
Chain O 2–115（114 aa）
Not recorded MG MAGNESIUM ION × 416 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；50 mM Tris-HCl, 70 mM NH4Cl, 30 mM KCl, 3.5 mM MgCl2, 8 mM putrescine, 0.5 mM spermidine, 1 mM DTT, 1 mM GTP, pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.00 Å
7OIG CspA-27 cotranslational folding intermediate 3 Deposited 2021-05-11 Assembly 1 Protein–RNA Heteromer；Protein × 50 PDB declaration: 55-meric（55） Consistent with all polymers
Chain O 2–115（114 aa）
Not recorded MG MAGNESIUM ION × 400 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；50 mM Tris-HCl, 70 mM NH4Cl, 30 mM KCl, 3.5 mM MgCl2, 8 mM putrescine, 0.5 mM spermidine, 1 mM DTT, 1 mM GTP, pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.20 Å
7OII CspA-70 cotranslational folding intermediate 2 Deposited 2021-05-11 Assembly 1 Protein–RNA Heteromer；Protein × 50 PDB declaration: 55-meric（55） Consistent with all polymers
Chain O 2–115（114 aa）
Not recorded MG MAGNESIUM ION × 422 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；50 mM Tris-HCl, 70 mM NH4Cl, 30 mM KCl, 3.5 mM MgCl2, 8 mM putrescine, 0.5 mM spermidine, 1 mM DTT, 1 mM GTP, pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.00 Å
7OT5 CspA-70 cotranslational folding intermediate 1 Deposited 2021-06-09 Assembly 1 Protein–RNA Heteromer；Protein × 50 PDB declaration: 55-meric（55） Consistent with all polymers
Chain O 2–115（114 aa）
Not recorded MG MAGNESIUM ION × 394 ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；50 mM Tris-HCl, 70 mM NH4Cl, 30 mM KCl, 3.5 mM MgCl2, 8 mM putrescine, 0.5 mM spermidine, 1 mM DTT, 1 mM GTP, 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.