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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：O97183 New Search
3PDB entries
3Biological assembly
3chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
O97183 9mu7 DNA-directed RNA polymerase II subunit RPB3 Author chain C Reference sequence 2–270 1 Other combination Heteromer Protein 12 DNA 2 RNA 1 pentadecameric （15） Consistent with all polymers
O97183 9mu8 DNA-directed RNA polymerase II subunit RPB3 Author chain C Reference sequence 2–270 1 Other combination Heteromer Protein 10 DNA 2 RNA 1 tridecameric （13） Consistent with all polymers
O97183 9mu9 DNA-directed RNA polymerase II subunit RPB3 Author chain C Reference sequence 2–270 1 Other combination Heteromer Protein 18 DNA 2 RNA 1 21-meric （21） 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.