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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：P39234 New Search
2PDB entries
2Biological assembly
2chain/assembly records
Main Difference Dimensions in This Set
Different construct 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
4KU0 Enterobacteria phage T4 gp5.4 PAAR repeat protein in complex with T4 gp5 beta-helix fragment Deposited 2013-05-21 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain D 2–97（96 aa）
Not recorded MG MAGNESIUM ION × 1 ELA Elaidic acid × 1 EDO 1,2-ETHANEDIOL × 4 STE STEARIC ACID × 1 PLM PALMITIC ACID × 1 FE FE (III) ION × 1 NA SODIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；293 K；23-25% PEG 3350, 100mM Tris pH=8.5, 40-100mM MgCl2, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 1.15 Å R-free 0.171
5IV5 Cryo-electron microscopy structure of the hexagonal pre-attachment T4 baseplate-tail tube complex Deposited 2016-03-19 Assembly 1 Protein heterocomplex Heteromer；Protein × 145 PDB declaration: 145-meric（145） Consistent with protein count
Chain ZA 1–97（97 aa）
Not recorded ZN ZINC ION × 6 FE FE (III) ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE；Applied 3.5 ul of sample and blotting 3 seconds before plunging
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.