← Back to search

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：Q8SDD3 New Search
6PDB entries
8Biological assembly
33chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification 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
3J0H Fitting of the bacteriophage phiKZ gp29PR structure into the cryo-EM density map of the phiKZ extended tail sheath Deposited 2011-08-16 Assembly 1 Protein homooligomer Homooligomer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 96–390（295 aa） Fragment：protease-resistant fragment of gene product 29 (GP29PR, UNP residues 96-390)
Chain B 96–390（295 aa） Fragment：protease-resistant fragment of gene product 29 (GP29PR, UNP residues 96-390)
Chain C 96–390（295 aa） Fragment：protease-resistant fragment of gene product 29 (GP29PR, UNP residues 96-390)
Chain D 96–390（295 aa） Fragment：protease-resistant fragment of gene product 29 (GP29PR, UNP residues 96-390)
Chain E 96–390（295 aa） Fragment：protease-resistant fragment of gene product 29 (GP29PR, UNP residues 96-390)
Chain F 96–390（295 aa） Fragment：protease-resistant fragment of gene product 29 (GP29PR, UNP residues 96-390)
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM vitrification conditions Cryogen ETHANE；liquid ethane
Resolution 18.00 Å
3J0I Fitting of the phiKZ gp29PR structure into the cryo-EM density map of the phiKZ polysheath Deposited 2011-08-16 Assembly 1 Protein homooligomer Homooligomer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 96–390（295 aa） Fragment：protease-resistant fragment of gene product 29 (GP29PR, UNP residues 96-390)
Chain B 96–390（295 aa） Fragment：protease-resistant fragment of gene product 29 (GP29PR, UNP residues 96-390)
Chain C 96–390（295 aa） Fragment：protease-resistant fragment of gene product 29 (GP29PR, UNP residues 96-390)
Chain D 96–390（295 aa） Fragment：protease-resistant fragment of gene product 29 (GP29PR, UNP residues 96-390)
Chain E 96–390（295 aa） Fragment：protease-resistant fragment of gene product 29 (GP29PR, UNP residues 96-390)
Chain F 96–390（295 aa） Fragment：protease-resistant fragment of gene product 29 (GP29PR, UNP residues 96-390)
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM vitrification conditions Cryogen ETHANE；liquid ethane
Resolution 19.00 Å
3SPE Crystal structure of the tail sheath protein protease resistant fragment from bacteriophage phiKZ Deposited 2011-07-01 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 96–390（295 aa） Fragment：Protease Resistant Fragment of Gene Product 29 (GP29PR) (UNP residues 96-390)
Non-standard monomer：Yes (specific site not provided by mmCIF) PO4 PHOSPHATE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.6；293 K；1.8 M Na/K Phosphate, pH 5.0 with 0.1 M Na Acetate, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.40 Å R-free 0.286
3SPE Crystal structure of the tail sheath protein protease resistant fragment from bacteriophage phiKZ Deposited 2011-07-01 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 96–390（295 aa） Fragment：Protease Resistant Fragment of Gene Product 29 (GP29PR) (UNP residues 96-390)
Non-standard monomer：Yes (specific site not provided by mmCIF) GOL GLYCEROL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.6；293 K；1.8 M Na/K Phosphate, pH 5.0 with 0.1 M Na Acetate, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.40 Å R-free 0.286
3SPE Crystal structure of the tail sheath protein protease resistant fragment from bacteriophage phiKZ Deposited 2011-07-01 Assembly 3 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 96–390（295 aa） Fragment：Protease Resistant Fragment of Gene Product 29 (GP29PR) (UNP residues 96-390)
Chain B 96–390（295 aa） Fragment：Protease Resistant Fragment of Gene Product 29 (GP29PR) (UNP residues 96-390)
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) PO4 PHOSPHATE ION × 2 GOL GLYCEROL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.6；293 K；1.8 M Na/K Phosphate, pH 5.0 with 0.1 M Na Acetate, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.40 Å R-free 0.286
9XPF The structure of sheath and tube proteins of phage Phikz Deposited 2025-11-16 Assembly 1 Protein heterocomplex Heteromer；Protein × 24 PDB declaration: 24-meric（24） Consistent with protein count
Chain A 1–695（695 aa）
Chain B 1–695（695 aa）
Chain C 1–695（695 aa）
Chain D 1–695（695 aa）
Chain E 1–695（695 aa）
Chain F 1–695（695 aa）
Chain M 1–695（695 aa）
Chain N 1–695（695 aa）
Chain O 1–695（695 aa）
Chain P 1–695（695 aa）
Chain Q 1–695（695 aa）
Chain R 1–695（695 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.15 Å
9XPS The neck structure of the Phage Phikz Deposited 2025-11-17 Assembly 1 Protein heterocomplex Heteromer；Protein × 15 PDB declaration: 15-meric（15） Consistent with protein count
Chain x 1–695（695 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.52 Å
9XQS Structure of the inner peripheral region in the phage phiKZ baseplate complex Deposited 2025-11-18 Assembly 1 Protein heterocomplex Heteromer；Protein × 84 PDB declaration: 84-meric（84） Consistent with protein count
Chain W 1–695（695 aa）
Chain X 1–695（695 aa）
Chain Y 1–695（695 aa）
Chain Z 1–695（695 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.65 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.