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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：A0AAA9WYR1 New Search
16PDB entries
16Biological assembly
16chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification 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
8SUP Structure of the 48S translation initiation complex assembled on the encephalomyocarditis virus IRES Deposited 2023-05-12 Assembly 1 Protein–RNA Heteromer；Protein × 44 PDB declaration: 47-meric（47） Consistent with all polymers
Chain P 1–168（168 aa）
Not recorded ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
9F1B Mammalian ternary complex of a translating 80S ribosome, NAC and NatA/E Deposited 2024-04-18 Assembly 1 Insufficient information Heteromer；Protein × 83 PDB declaration: 89-meric（89） Consistent with all polymers
Chain An 18–168（151 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) MG MAGNESIUM ION × 420 ZN ZINC ION × 8 UNX UNKNOWN LIGAND × 306 IHP INOSITOL HEXAKISPHOSPHATE × 1 SPD SPERMIDINE × 30 SPM SPERMINE × 3 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 3.01 Å
9F1C Mammalian quaternary complex of a translating 80S ribosome, NAC, MetAP1 and NatA/E Deposited 2024-04-18 Assembly 1 Insufficient information Heteromer；Protein × 84 PDB declaration: 90-meric（90） Consistent with all polymers
Chain An 18–168（151 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) UNX UNKNOWN LIGAND × 277 MG MAGNESIUM ION × 420 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 SPD SPERMIDINE × 30 SPM SPERMINE × 3 ZN ZINC ION × 8 IHP INOSITOL HEXAKISPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 3.78 Å
9F1D Mammalian quaternary complex of a translating 80S ribosome, NAC, MetAP1 and NatA/E-HYPK Deposited 2024-04-18 Assembly 1 Protein–RNA Heteromer；Protein × 85 PDB declaration: 91-meric（91） Consistent with all polymers
Chain An 18–168（151 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) UNX UNKNOWN LIGAND × 295 SPD SPERMIDINE × 30 MG MAGNESIUM ION × 420 SPM SPERMINE × 3 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 IHP INOSITOL HEXAKISPHOSPHATE × 1 ZN ZINC ION × 8 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 3.26 Å
9OGY Megrivirus E 3' internal ribosome entry site (IRES) RNA core region bound to rabbit ribosome Deposited 2025-05-02 Assembly 1 Protein–RNA Heteromer；Protein × 34 PDB declaration: 36-meric（36） Consistent with all polymers
Chain P 1–168（168 aa）
Not recorded ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；20 mM Tris-HCl pH 7.5, 2 mM MgOAc2, 150 mM KCl
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.28 Å
9UZK EMCV IRES captured on mammalian 40S with initiator tRNA Deposited 2025-05-16 Assembly 1 Protein–RNA Heteromer；Protein × 34 PDB declaration: 37-meric（37） Consistent with all polymers
Chain Q 1–168（168 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4；20mM HEPES, 150mM KOAc, 2mM MgCl2, 1mM DTT, 0.5mM Spermidine, 6mM GMP-PnP
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 4.60 Å
9UZL EMCV IRES captured on mammalian 40S ribosome with initiator tRNA and eIF2 Deposited 2025-05-16 Assembly 1 Protein–RNA Heteromer；Protein × 36 PDB declaration: 39-meric（39） Consistent with all polymers
Chain Q 1–168（168 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4；20mM HEPES, 150mM KOAc, 2mM MgCl2, 1mM DTT, 0.5mM Spermidine, 6mM GMP-PnP
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 5.01 Å
9UZM 40S ribosome without initiation factors Deposited 2025-05-16 Assembly 1 Protein–RNA Heteromer；Protein × 34 PDB declaration: 35-meric（35） Consistent with all polymers
Chain Q 1–168（168 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4；20mM HEPES, 150mM KOAc, 2mM MgCl2, 1mM DTT, 0.5mM Spermidine, 6mM GMP-PnP
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 4.50 Å
9YPO GTPBP1*GCP*Phe-tRNA*ribosome in the open state, Structure IIa Deposited 2025-10-14 Assembly 1 Protein–RNA Heteromer；Protein × 76 PDB declaration: 84-meric（84） Consistent with all polymers
Chain OO 1–168（168 aa）
Not recorded SPD SPERMIDINE × 1 ZN ZINC ION × 6 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 PHE PHENYLALANINE × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MET METHIONINE × 1 GCP PHOSPHOMETHYLPHOSPHONIC ACID GUANYLATE ESTER × 1 MG MAGNESIUM ION × 1 K POTASSIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.00 Å
9YPS GTPBP1*GCP*Phe-tRNA*ribosome in the open state, Structure IIb Deposited 2025-10-14 Assembly 1 Protein–RNA Heteromer；Protein × 76 PDB declaration: 84-meric（84） Consistent with all polymers
Chain OO 1–168（168 aa）
Not recorded SPD SPERMIDINE × 1 ZN ZINC ION × 6 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 PHE PHENYLALANINE × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MET METHIONINE × 1 K POTASSIUM ION × 1 GCP PHOSPHOMETHYLPHOSPHONIC ACID GUANYLATE ESTER × 1 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.00 Å
9YPT GTPBP1*GCP*Phe-tRNA*ribosome in the open state, Structure IIc Deposited 2025-10-14 Assembly 1 Protein–RNA Heteromer；Protein × 76 PDB declaration: 84-meric（84） Consistent with all polymers
Chain OO 1–168（168 aa）
Not recorded SPD SPERMIDINE × 1 ZN ZINC ION × 6 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 PHE PHENYLALANINE × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MET METHIONINE × 1 GCP PHOSPHOMETHYLPHOSPHONIC ACID GUANYLATE ESTER × 1 MG MAGNESIUM ION × 1 K POTASSIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
9YPV GTPBP1*GCP*Phe-tRNA*ribosome in the open state, Structure IId Deposited 2025-10-14 Assembly 1 Protein–RNA Heteromer；Protein × 76 PDB declaration: 84-meric（84） Consistent with all polymers
Chain OO 1–168（168 aa）
Not recorded SPD SPERMIDINE × 1 ZN ZINC ION × 6 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 PHE PHENYLALANINE × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MET METHIONINE × 1 K POTASSIUM ION × 1 GCP PHOSPHOMETHYLPHOSPHONIC ACID GUANYLATE ESTER × 1 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.00 Å
9YPY Ribosome with accommodated A-site tRNA, Structure V Deposited 2025-10-14 Assembly 1 Protein–RNA Heteromer；Protein × 75 PDB declaration: 83-meric（83） Consistent with all polymers
Chain OO 1–168（168 aa）
Not recorded SPD SPERMIDINE × 1 ZN ZINC ION × 6 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 PHE PHENYLALANINE × 1 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MET METHIONINE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.00 Å
9YPZ Vacant ribosome with P-site tRNA, substate 1, Structure Ia Deposited 2025-10-14 Assembly 1 Protein–RNA Heteromer；Protein × 75 PDB declaration: 82-meric（82） Consistent with all polymers
Chain OO 1–168（168 aa）
Not recorded SPD SPERMIDINE × 1 ZN ZINC ION × 6 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MET METHIONINE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
9YQ0 Vacant ribosome with P-site tRNA, substate 2, Structure Ib Deposited 2025-10-14 Assembly 1 Protein–RNA Heteromer；Protein × 75 PDB declaration: 82-meric（82） Consistent with all polymers
Chain OO 1–168（168 aa）
Not recorded SPD SPERMIDINE × 1 ZN ZINC ION × 6 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MET METHIONINE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
9YQ1 Vacant ribosome with P-site tRNA, substate 3, Structure Ic Deposited 2025-10-14 Assembly 1 Protein–RNA Heteromer；Protein × 75 PDB declaration: 82-meric（82） Consistent with all polymers
Chain OO 1–168（168 aa）
Not recorded SPD SPERMIDINE × 1 ZN ZINC ION × 6 ATP ADENOSINE-5'-TRIPHOSPHATE × 2 MET METHIONINE × 1 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.