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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：Q56691 New Search
2PDB entries
2Biological assembly
4chain/assembly records
Main Difference Dimensions in This Set
Different ligand/ion 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
1BKJ NADPH:FMN OXIDOREDUCTASE FROM VIBRIO HARVEYI Deposited 1998-07-08 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–240（240 aa）
Chain B 1–240（240 aa）
Not recorded PO4 PHOSPHATE ION × 2 FMN FLAVIN MONONUCLEOTIDE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7；pH 7.0
Resolution 1.80 Å R-free 0.207
2BKJ NADPH:FMN OXIDOREDUCTASE FROM VIBRIO HARVEYI COMPLEXED WITH NAD+ Deposited 1998-07-23 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–240（240 aa）
Chain B 1–240（240 aa）
Not recorded FMN FLAVIN MONONUCLEOTIDE × 2 NAD NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7；pH 7.0
Resolution 2.08 Å R-free 0.206

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.