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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：Q8I374 New Search
3PDB entries
4Biological assembly
35chain/assembly records
Main Difference Dimensions in This Set
Different assembly state Different ligand/ion Different experimental method 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
6DFK Crystal structure of the 11S subunit of the Plasmodium falciparum proteasome, PA28 Deposited 2018-05-15 Assembly 1 Protein homooligomer Homooligomer；Protein × 7 PDB declaration: heptameric（7） Consistent with protein count
Chain A 1–279（279 aa）
Chain B 1–279（279 aa）
Chain C 1–279（279 aa）
Chain D 1–279（279 aa）
Chain E 1–279（279 aa）
Chain F 1–279（279 aa）
Chain G 1–279（279 aa）
Not recorded SO4 SULFATE ION × 30 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；293 K；20 mM HEPES, 2 M ammonium sulfate
Resolution 3.10 Å R-free 0.225
6DFK Crystal structure of the 11S subunit of the Plasmodium falciparum proteasome, PA28 Deposited 2018-05-15 Assembly 2 Protein homooligomer Homooligomer；Protein × 7 PDB declaration: heptameric（7） Consistent with protein count
Chain H 1–279（279 aa）
Chain I 1–279（279 aa）
Chain J 1–279（279 aa）
Chain K 1–279（279 aa）
Chain L 1–279（279 aa）
Chain M 1–279（279 aa）
Chain N 1–279（279 aa）
Not recorded SO4 SULFATE ION × 30 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；293 K；20 mM HEPES, 2 M ammonium sulfate
Resolution 3.10 Å R-free 0.225
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 c 1–279（279 aa）
Chain d 1–279（279 aa）
Chain e 1–279（279 aa）
Chain f 1–279（279 aa）
Chain g 1–279（279 aa）
Chain h 1–279（279 aa）
Chain i 1–279（279 aa）
Chain j 1–279（279 aa）
Chain k 1–279（279 aa）
Chain l 1–279（279 aa）
Chain m 1–279（279 aa）
Chain n 1–279（279 aa）
Chain o 1–279（279 aa）
Chain p 1–279（279 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
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 c 1–279（279 aa）
Chain d 1–279（279 aa）
Chain e 1–279（279 aa）
Chain f 1–279（279 aa）
Chain g 1–279（279 aa）
Chain h 1–279（279 aa）
Chain i 1–279（279 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

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.