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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：Q3T552 New Search
2PDB entries
2Biological assembly
2chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification 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
2ZXQ Crystal structure of endo-alpha-N-acetylgalactosaminidase from Bifidobacterium longum (EngBF) Deposited 2009-01-05 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 340–1694（1355 aa） Fragment：residues 340-1694
Not recorded MN MANGANESE (II) ION × 4 MPD (4S)-2-METHYL-2,4-PENTANEDIOL × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.9；293 K；0.1M MES-NaOH, 3% PEG 20000, 25% MPD, 0.2M NaCl, 0.01M MnCl2, pH 6.9, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.00 Å R-free 0.196
6SH9 EngBF DARPin Fusion 4b D12 Deposited 2019-08-06 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 340–1521（1182 aa）
Not recorded MES 2-(N-MORPHOLINO)-ETHANESULFONIC ACID × 1 MN MANGANESE (II) ION × 4 MPD (4S)-2-METHYL-2,4-PENTANEDIOL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；277.15 K；PEG 20,000 MPD MES sodium chloride manganese chloride
Resolution 2.40 Å R-free 0.193

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.