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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：Q2FKQ1 New Search
1PDB entries
2Biological assembly
3chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
Q2FKQ1 6qx2 DNA gyrase subunit B,DNA gyrase subunit B Author chain K Reference sequence 581–639 2 Insufficient information Heteromer Protein 4 DNA 2 hexameric （6） Consistent with all polymers
Q2FKQ1 6qx2 DNA gyrase subunit B,DNA gyrase subunit B Author chain M Reference sequence 580–639 2 Insufficient information Heteromer Protein 4 DNA 2 hexameric （6） Consistent with all polymers
Q2FKQ1 6qx2 DNA gyrase subunit B,DNA gyrase subunit B Author chain u Reference sequence 580–637 6 Insufficient information Heteromer Protein 4 DNA 2 hexameric （6） Consistent with all polymers

“Homomeric versus heteromeric classification follows protein identity; different constructs of the same UniProt entry still require comparison of reference-sequence ranges, mutations and missing segments. Assemblies marked for review remain visible but are not included in the highest-confidence candidate set.