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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：Q9AAU2 New Search
4PDB entries
4Biological assembly
4chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
Q9AAU2 9pfq DNA-directed RNA polymerase subunit beta Author chain C Reference sequence 1–1356 1 Protein–DNA Heteromer Protein 8 DNA 4 12-meric （12） Consistent with all polymers
Q9AAU2 9pfv DNA-directed RNA polymerase subunit beta Author chain C Reference sequence 1–1356 1 Protein–DNA Heteromer Protein 8 DNA 4 dodecameric （12） Consistent with all polymers
Q9AAU2 9pga DNA-directed RNA polymerase subunit beta Author chain C Reference sequence 1–1356 1 Protein–DNA Heteromer Protein 8 DNA 4 12-meric （12） Consistent with all polymers
Q9AAU2 9pgh DNA-directed RNA polymerase subunit beta Author chain C Reference sequence 1–1356 1 Protein–DNA Heteromer Protein 6 DNA 2 octameric （8） 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.