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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：P38293 New Search
17PDB entries
17Biological assembly
23chain/assembly records
Main Difference Dimensions in This Set
Different assembly state 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
7LS6 Cryo-EM structure of Pre-15S proteasome core particle assembly intermediate purified from Pre3-1 proteasome mutant (G34D) Deposited 2021-02-17 Assembly 1 Protein heterocomplex Heteromer；Protein × 15 PDB declaration: pentadecameric（15） Consistent with protein count
Chain H 1–148（148 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；Fluorinated Fos-Choline was added to the sample immediately prior to deposition on a grid for plunge freezing.
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.17 Å
7LSX Cryo-EM structure of 13S proteasome core particle assembly intermediate purified from Pre3-1 proteasome mutant (G34D) Deposited 2021-02-18 Assembly 1 Protein heterocomplex Heteromer；Protein × 13 PDB declaration: tridecameric（13） Consistent with protein count
Chain H 1–148（148 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；Fluorinated Fos-Choline was added to the sample immediately prior to deposition on a grid for plunge freezing.
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.61 Å
8RVL Proteasomal late precursor complex from pre1-1 Deposited 2024-02-01 Assembly 1 Protein heterocomplex Heteromer；Protein × 34 PDB declaration: 34-meric（34） Consistent with protein count
Chain 3 1–148（148 aa）
Chain 6 1–148（148 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；150 mM NaCl 50 mM Tris-HCl
cryo-EM vitrification conditions Cryogen ETHANE；manual plunge freezing device purchased from 'Neptune Fluid Flow Systems'
Resolution 2.14 Å
8RVO Proteasomal late precursor complex from pre1-1, state 1 Deposited 2024-02-01 Assembly 1 Protein heterocomplex Heteromer；Protein × 34 PDB declaration: 34-meric（34） Consistent with protein count
Chain 3 1–148（148 aa）
Chain 6 1–148（148 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；150 mM NaCl 50 mM Tris-HCl
cryo-EM vitrification conditions Cryogen ETHANE；manual plunge freezing device purchased from 'Neptune Fluid Flow Systems'
Resolution 2.69 Å
8RVP Proteasomal late precursor complex from pre1-1, state 2 Deposited 2024-02-01 Assembly 1 Protein heterocomplex Heteromer；Protein × 34 PDB declaration: 34-meric（34） Consistent with protein count
Chain 3 1–148（148 aa）
Chain 6 1–148（148 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；150 mM NaCl 50 mM Tris-HCl
cryo-EM vitrification conditions Cryogen ETHANE；manual plunge freezing device purchased from 'Neptune Fluid Flow Systems'
Resolution 2.28 Å
8T08 Preholo-Proteasome from Pre1-1 Pre4-1 Double Mutant Deposited 2023-05-31 Assembly 1 Protein heterocomplex Heteromer；Protein × 34 PDB declaration: 34-meric（34） Consistent with protein count
Chain H 1–148（148 aa）
Chain Y 1–148（148 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；Fluorinated Fos-Choline was added to the sample immediately prior to deposition on a grid for plunge freezing.
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.00 Å
8U6Y Preholo-Proteasome from Beta 3 D205 deletion Deposited 2023-09-14 Assembly 1 Protein heterocomplex Heteromer；Protein × 34 PDB declaration: 34-meric（34） Consistent with protein count
Chain H 1–148（148 aa）
Chain Y 1–148（148 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；Fluorinated Fos-Choline was added immediately prior to deposition on a grid for plunge freezing.
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.80 Å
9D0T Proteasome core particle assembly intermediate Blm10:13S purified from Saccharomyces cerevisiae Deposited 2024-08-07 Assembly 1 Insufficient information Heteromer；Protein × 12 PDB declaration: dodecameric（12） Consistent with protein count
Chain P 1–148（148 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.84 Å
9D35 Proteasome core particle assembly intermediate 5-alpha/3-beta/Ump1 purified from Saccharomyces cerevisiae. Deposited 2024-08-09 Assembly 1 Protein heterocomplex Heteromer；Protein × 9 PDB declaration: nonameric（9） Consistent with protein count
Chain P 1–148（148 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.26 Å
9D3I Proteasome core particle assembly intermediate 5-alpha/4-beta/Ump1 purified from Saccharomyces cerevisiae. Deposited 2024-08-10 Assembly 1 Protein heterocomplex Heteromer；Protein × 10 PDB declaration: decameric（10） Consistent with protein count
Chain P 1–148（148 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.11 Å
9D4U Core particle assembly intermediate Capless 13S purified from Saccharomyces cerevisiae Deposited 2024-08-13 Assembly 1 Protein heterocomplex Heteromer；Protein × 11 PDB declaration: 11-meric（11） Consistent with protein count
Chain P 1–148（148 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.55 Å
9RL3 13S proteasome precursor complex Deposited 2025-06-16 Assembly 1 Protein heterocomplex Heteromer；Protein × 13 PDB declaration: 13-meric（13） Consistent with protein count
Chain 3 1–148（148 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；150 mM NaCl 50 mM Tris-HCl
cryo-EM vitrification conditions Cryogen ETHANE；manual plunge freezing device purchased from "Neptune FLuid Flow Systems"
Resolution 3.31 Å
9RLA 13S+Beta1 proteasome precursor complex Deposited 2025-06-16 Assembly 1 Protein heterocomplex Heteromer；Protein × 14 PDB declaration: 14-meric（14） Consistent with protein count
Chain 3 1–148（148 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；150 mM NaCl 50 mM Tris-HCl
cryo-EM vitrification conditions Cryogen ETHANE；manual plunge freezing device purchased from "Neptune FLuid Flow Systems"
Resolution 3.16 Å
9RLT dimerised 13S-13S+Beta5 proteasome precursor complexes Deposited 2025-06-17 Assembly 1 Protein heterocomplex Heteromer；Protein × 27 PDB declaration: 27-meric（27） Consistent with protein count
Chain 3 1–148（148 aa）
Chain 6 1–148（148 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；150 mM NaCl 50 mM Tris-HCl
cryo-EM vitrification conditions Cryogen ETHANE；manual plunge freezing device purchased from "Neptune FLuid Flow Systems"
Resolution 3.09 Å
9RLZ 15S proteasome precursor complex Deposited 2025-06-17 Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: 16-meric（16） Consistent with protein count
Chain 3 1–148（148 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；150 mM NaCl 50 mM Tris-HCl
cryo-EM vitrification conditions Cryogen ETHANE；manual plunge freezing device purchased from "Neptune FLuid Flow Systems"
Resolution 3.12 Å
9RM0 13S+Beta5+Beta6 proteasome precursor complex Deposited 2025-06-17 Assembly 1 Protein heterocomplex Heteromer；Protein × 15 PDB declaration: 15-meric（15） Consistent with protein count
Chain 3 1–148（148 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；150 mM NaCl 50 mM Tris-HCl
cryo-EM vitrification conditions Cryogen ETHANE；manual plunge freezing device purchased from "Neptune FLuid Flow Systems"
Resolution 3.29 Å
9RM1 13S+Beta1+Beta5 proteasome precursor complex Deposited 2025-06-17 Assembly 1 Protein heterocomplex Heteromer；Protein × 15 PDB declaration: 15-meric（15） Consistent with protein count
Chain 3 1–148（148 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；150 mM NaCl 50 mM Tris-HCl
cryo-EM vitrification conditions Cryogen ETHANE；manual plunge freezing device purchased from "Neptune FLuid Flow Systems"
Resolution 4.11 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.