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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：A0A140N4M0 New Search
4PDB entries
4Biological assembly
4chain/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
6QDW Cryo-EM structure of the 50S ribosomal subunit at 2.83 Angstroms with modeled GBC SecM peptide Deposited 2019-01-03 Assembly 1 Protein–RNA Heteromer；Protein × 29 PDB declaration: 32-meric（32） Consistent with all polymers
Chain n 1–127（127 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；Tico Buffer
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.83 Å
6YS3 Cryo-EM structure of the 50S ribosomal subunit at 2.58 Angstroms with modeled GBC SecM peptide Deposited 2020-04-20 Assembly 1 Protein–RNA Heteromer；Protein × 29 PDB declaration: 32-meric（32） Consistent with all polymers
Chain n 1–127（127 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.58 Å
7OTC Cryo-EM structure of an Escherichia coli 70S ribosome in complex with elongation factor G and the antibiotic Argyrin B Deposited 2021-06-10 Assembly 1 Protein–RNA Heteromer；Protein × 49 PDB declaration: 52-meric（52） Consistent with all polymers
Chain N 1–120（120 aa）
Not recorded MG MAGNESIUM ION × 292 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 PUT 1,4-DIAMINOBUTANE × 8 SPD SPERMIDINE × 2 ZN ZINC ION × 2 GDP GUANOSINE-5'-DIPHOSPHATE × 1 1I7 Argyrin B × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
9GR1 E. coli 70S-TEC complex in delivery state Deposited 2024-09-10 Assembly 1 Protein–RNA Heteromer；Protein × 48 PDB declaration: 55-meric（55） Consistent with all polymers
Chain m 1–127（127 aa）
Not recorded ZN ZINC ION × 1 K POTASSIUM ION × 168 MG MAGNESIUM ION × 360 PHE PHENYLALANINE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.17 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.