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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：Q8IKC9 New Search
14PDB entries
14Biological assembly
27chain/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
5FMG Structure and function based design of Plasmodium-selective proteasome inhibitors Deposited 2015-11-04 Assembly 1 Protein heterocomplex Heteromer；Protein × 28 PDB declaration: 28-meric（28） Consistent with protein count
Chain K 1–195（195 aa）
Chain Y 1–195（195 aa）
Not recorded 7F1 (2S)-N-[(E,2S)-1-(1H-indol-3-yl)-4-methylsulfonyl-but-3-en-2-yl]-2-[[(2S)-3-(1H-indol-3-yl)-2-(2-morpholin-4-ylethanoylamino)propanoyl]amino]-4-methyl-pentanamide × 2 ELECTRON MICROSCOPY
cryo-EM buffer 50MM TRIS HCL, 5MM MGCL2, 1MM DITHIOTREITOL；pH 7.5；50MM TRIS HCL, 5MM MGCL2, 1MM DITHIOTREITOL
cryo-EM vitrification conditions Cryogen ETHANE；VITRIFICATION 1 -- CRYOGEN- ETHANE, HUMIDITY- 95, INSTRUMENT- FEI VITROBOT MARK III, METHOD- BLOT 2.5 SECONDS BEFORE PLUNGING,
Resolution 3.60 Å
6MUV The structure of the Plasmodium falciparum 20S proteasome in complex with two PA28 activators Deposited 2018-10-23 Assembly 1 Protein heterocomplex Heteromer；Protein × 42 PDB declaration: 42-meric（42） Consistent with protein count
Chain K 1–195（195 aa）
Chain Y 1–195（195 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE；wait time 0sec blot time 2sec blot force -1
Resolution 3.80 Å
6MUW The structure of the Plasmodium falciparum 20S proteasome. Deposited 2018-10-23 Assembly 1 Protein heterocomplex Heteromer；Protein × 28 PDB declaration: 28-meric（28） Consistent with protein count
Chain K 1–195（195 aa）
Chain Y 1–195（195 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE；wait time 0sec blot time 2sec blot force -1
Resolution 3.60 Å
6MUX The structure of the Plasmodium falciparum 20S proteasome in complex with one PA28 activator Deposited 2018-10-23 Assembly 1 Protein heterocomplex Heteromer；Protein × 35 PDB declaration: 35-meric（35） Consistent with protein count
Chain K 1–195（195 aa）
Chain Y 1–195（195 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE；wait time 0sec blot time 2sec blot force -1
Resolution 3.90 Å
7LXT Structure of Plasmodium falciparum 20S proteasome with bound bortezomib Deposited 2021-03-05 Assembly 1 Protein heterocomplex Heteromer；Protein × 28 PDB declaration: 28-meric（28） Consistent with protein count
Chain K 1–195（195 aa）
Chain Y 1–195（195 aa）
Not recorded BO2 N-[(1R)-1-(DIHYDROXYBORYL)-3-METHYLBUTYL]-N-(PYRAZIN-2-YLCARBONYL)-L-PHENYLALANINAMIDE × 6 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
7LXU Structure of Plasmodium falciparum 20S proteasome with bound MPI-5 Deposited 2021-03-05 Assembly 1 Protein heterocomplex Heteromer；Protein × 28 PDB declaration: 28-meric（28） Consistent with protein count
Chain K 1–195（195 aa）
Chain Y 1–195（195 aa）
Not recorded YHD N-[(1R)-2-([1,1'-biphenyl]-4-yl)-1-boronoethyl]-1-methyl-L-prolinamide × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
8G6F Structure of the Plasmodium falciparum 20S proteasome beta-6 A117D mutant complexed with inhibitor WLW-vs Deposited 2023-02-15 Assembly 1 Protein heterocomplex Heteromer；Protein × 28 PDB declaration: 28-meric（28） Consistent with protein count
Chain K 1–195（195 aa）
Chain Y 1–195（195 aa）
Not recorded 7F1 (2S)-N-[(E,2S)-1-(1H-indol-3-yl)-4-methylsulfonyl-but-3-en-2-yl]-2-[[(2S)-3-(1H-indol-3-yl)-2-(2-morpholin-4-ylethanoylamino)propanoyl]amino]-4-methyl-pentanamide × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.58 Å
8W2F Plasmodium falciparum 20S proteasome bound to an inhibitor Deposited 2024-02-20 Assembly 1 Protein heterocomplex Heteromer；Protein × 28 PDB declaration: 28-meric（28） Consistent with protein count
Chain K 1–195（195 aa）
Chain Y 1–195（195 aa）
Not recorded A1AE6 (3S)-1-[(2-fluoroethoxy)acetyl]-N-{[(4P)-4-(6-methylpyridin-3-yl)-1,3-thiazol-2-yl]methyl}piperidine-3-carboxamide × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
9O3E Plasmodium falciparum 20S proteasome bound to inhibitor 159 Deposited 2025-04-07 Assembly 1 Protein heterocomplex Heteromer；Protein × 28 PDB declaration: 28-meric（28） Consistent with protein count
Chain K 1–195（195 aa）
Chain Y 1–195（195 aa）
Not recorded A1B74 (3S)-N~3~-{(1S)-1-[4-(4-cyanophenyl)-1,3-thiazol-2-yl]ethyl}-N~1~-ethoxypiperidine-1,3-dicarboxamide × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.79 Å
9O3F Plasmodium falciparum 20S proteasome bound to inhibitor 296 Deposited 2025-04-07 Assembly 1 Protein heterocomplex Heteromer；Protein × 28 PDB declaration: 28-meric（28） Consistent with protein count
Chain K 1–195（195 aa）
Chain Y 1–195（195 aa）
Not recorded A1B73 (3S)-1-({[(3S)-piperidin-3-yl]oxy}acetyl)-N-({4-[4-(trifluoromethyl)phenyl]-1,3-thiazol-2-yl}methyl)piperidine-3-carboxamide × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.28 Å
9Y0K Structure of Plasmodium falciparum 20S proteasome with bound J80 Deposited 2025-08-28 Assembly 1 Protein heterocomplex Heteromer；Protein × 28 PDB declaration: 28-meric（28） Consistent with protein count
Chain K 1–195（195 aa）
Chain Y 1–195（195 aa）
Not recorded A1CRO N,N-diethyl-N~2~-hexanoyl-D-asparaginyl-N-{(1S)-2-(2,4-difluorophenyl)-1-[(2S,3S,5S,6S)-5-formyl-2-hydroxy-3-(hydroxymethyl)-3,6-dimethylmorpholin-2-yl]ethyl}-4-fluoro-L-phenylalaninamide × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.00 Å
9Y0L Incorrectly assembled half-Pf20S Deposited 2025-08-28 Assembly 1 Protein heterocomplex Heteromer；Protein × 15 PDB declaration: pentadecameric（15） Consistent with protein count
Chain K 1–195（195 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.00 Å
9Y1O The structure of the Plasmodium falciparum 20S proteasome Deposited 2025-08-29 Assembly 1 Protein heterocomplex Heteromer；Protein × 28 PDB declaration: 28-meric（28） Consistent with protein count
Chain K 1–195（195 aa）
Chain Y 1–195（195 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
9YUY Structure of the Plasmodium falciparum 20S proteasome in complex with a beta5-selective covalent syringolin analogue inhibitor. Deposited 2025-10-23 Assembly 1 Protein heterocomplex Heteromer；Protein × 28 PDB declaration: 28-meric（28） Consistent with protein count
Chain K 1–195（195 aa）
Chain Y 1–195（195 aa）
Not recorded A1CY6 methyl N-{[(2R)-1-({(5R,8R)-5-[(3-fluorophenyl)methyl]-2,7-dioxo-1,6-diazacyclododecan-8-yl}amino)-1-oxo-3-phenylpropan-2-yl]carbamoyl}-L-valinate × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.70 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.