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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：Q9H7B2 New Search
5PDB entries
5Biological assembly
5chain/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
8FL0 Human nucleolar pre-60S ribosomal subunit (State H) Deposited 2022-12-21 Assembly 1 Protein–RNA Heteromer；Protein × 29 PDB declaration: 31-meric（31） Consistent with all polymers
Chain ND 1–306（306 aa）
Not recorded MG MAGNESIUM ION × 22 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 K POTASSIUM ION × 2 GDP GUANOSINE-5'-DIPHOSPHATE × 1 ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE；Four applications with manual blotting before last blotting with the vitrobot.
Resolution 2.91 Å
8IR1 human nuclear pre-60S ribosomal particle - State A Deposited 2023-03-17 Assembly 1 Protein–RNA Heteromer；Protein × 50 PDB declaration: 53-meric（53） Consistent with all polymers
Chain T 1–306（306 aa）
Not recorded GTP GUANOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.30 Å
8IR3 human nuclear pre-60S ribosomal particle - State B' Deposited 2023-03-17 Assembly 1 Protein–RNA Heteromer；Protein × 55 PDB declaration: 59-meric（59） Consistent with all polymers
Chain T 1–306（306 aa）
Not recorded GTP GUANOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.50 Å
8RL2 Human pre-60S - State 5 Deposited 2024-01-02 Assembly 1 Protein–RNA Heteromer；Protein × 49 PDB declaration: 52-meric（52） Consistent with all polymers
Chain CJ 1–306（306 aa）
Not recorded ZN ZINC ION × 5 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 2 GDP GUANOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.84 Å
9QIW Human pre-60S - State 3 Deposited 2025-03-17 Assembly 1 Protein–RNA Heteromer；Protein × 48 PDB declaration: 51-meric（51） Consistent with all polymers
Chain CJ 1–306（306 aa）
Not recorded GTP GUANOSINE-5'-TRIPHOSPHATE × 1 GDP GUANOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 1 ZN ZINC ION × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.04 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.