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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：Q5XJX1 New Search
3PDB entries
3Biological assembly
4chain/assembly records
Main Difference Dimensions in This Set
Different construct 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
2BE4 X-RAY STRUCTURE AN EF-HAND PROTEIN FROM DANIO RERIO Dr.36843 Deposited 2005-10-21 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 2–272（271 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 9；277 K；10 MG/ML PROTEIN, 26% PEG 2K, 0.100 M BTP, pH 9.0, vapor diffusion, hanging drop, temperature 277K
Resolution 2.10 Å R-free 0.253
2Q4U Ensemble refinement of the crystal structure of an EF-hand protein from Danio rerio Dr.36843 Deposited 2007-05-31 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 2–272（271 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.10 Å R-free 0.242
6JLH Structure of SCGN in complex with a Snap25 peptide Deposited 2019-03-05 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 7–267（261 aa）
Chain C 7–267（261 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) CA CALCIUM ION × 12 CL CHLORIDE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；0.1 M glycocine, 0.1 M Tris Bicine pH 8.5, 12.5% MPD, 12.5% PEG 1000, 12.5% PEG 3350
Resolution 2.37 Å R-free 0.237

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.