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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：Q12321 New Search
5PDB entries
5Biological assembly
6chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
Q12321 7ui9 Mediator of RNA polymerase II transcription subunit 1 Author chain a Reference sequence 1–566 1 Protein heterocomplex Heteromer Protein 33 33-meric （33） Consistent with protein count
Q12321 7uif Mediator of RNA polymerase II transcription subunit 1 Author chain a Reference sequence 1–566 1 Protein heterocomplex Heteromer Protein 33 33-meric （33） Consistent with protein count
Q12321 7uig Mediator of RNA polymerase II transcription subunit 1 Author chain a Reference sequence 1–566 1 Protein heterocomplex Heteromer Protein 17 heptadecameric （17） Consistent with protein count
Q12321 7uil Mediator of RNA polymerase II transcription subunit 1 Author chain a Reference sequence 1–566 1 Protein heterocomplex Heteromer Protein 13 tridecameric （13） Consistent with protein count
Q12321 7uio Mediator of RNA polymerase II transcription subunit 1 Author chain Aa Reference sequence 1–566 1 Protein–DNA Heteromer Protein 78 DNA 2 80-meric （80） Consistent with all polymers
Q12321 7uio Mediator of RNA polymerase II transcription subunit 1 Author chain Ba Reference sequence 1–566 1 Protein–DNA Heteromer Protein 78 DNA 2 80-meric （80） 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.