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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：Q3BDD9 New Search
2PDB entries
2Biological assembly
2chain/assembly records
Main Difference Dimensions in This Set
Different construct 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
2L3R NMR structure of UHRF1 Tandem Tudor Domains in a complex with Histone H3 peptide Deposited 2010-09-21 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 2–12（11 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 7；298 K；Ionic strength (raw mmCIF value) 250；Pressure 1
NMR sample composition 0.6 mM [U-100% 15N] protein, 0.6 mM [U-100% 13C] protein, 3 mM protein, 90% H2O/10% D2O | 90% H2O/10% D2O
Resolution not provided
3FDT Crystal structure of the complex of human chromobox homolog 5 (CBX5) with H3K9(me)3 peptide Deposited 2008-11-26 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain T 2–16（15 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 8.5；298 K；35% PEG 400, 0.2M Na Cl, 0.1M Tris (pH 8.5), VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.00 Å R-free 0.257

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.