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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：B8YB54 New Search
3PDB entries
5Biological assembly
9chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
B8YB54 2y0s ;DNA-DIRECTED RNA POLYMERASE SUBUNIT A'' ; Author chain C Reference sequence 1–395 1 Protein heterocomplex Heteromer Protein 13 tridecameric （13） Consistent with protein count
B8YB54 2y0s ;DNA-DIRECTED RNA POLYMERASE SUBUNIT A'' ; Author chain Y Reference sequence 1–395 1 Protein heterocomplex Heteromer Protein 13 tridecameric （13） Consistent with protein count
B8YB54 2y0s ;DNA-DIRECTED RNA POLYMERASE SUBUNIT A'' ; Author chain C Reference sequence 1–395 2 Protein heterocomplex Heteromer Protein 13 tridecameric （13） Consistent with protein count
B8YB54 2y0s ;DNA-DIRECTED RNA POLYMERASE SUBUNIT A'' ; Author chain Y Reference sequence 1–395 2 Protein heterocomplex Heteromer Protein 13 tridecameric （13） Consistent with protein count
B8YB54 4ayb DNA-DIRECTED RNA POLYMERASE Author chain C Reference sequence 1–395 1 Protein heterocomplex Heteromer Protein 13 tridecameric （13） Consistent with protein count
B8YB54 4v8s ;DNA-DIRECTED RNA POLYMERASE SUBUNIT A'' ; Author chain AY Reference sequence 1–395 1 Protein–DNA Heteromer Protein 13 DNA 2 pentadecameric （15） Consistent with all polymers
B8YB54 4v8s ;DNA-DIRECTED RNA POLYMERASE SUBUNIT A'' ; Author chain BC Reference sequence 1–395 1 Protein–DNA Heteromer Protein 13 DNA 2 pentadecameric （15） Consistent with all polymers
B8YB54 4v8s ;DNA-DIRECTED RNA POLYMERASE SUBUNIT A'' ; Author chain AY Reference sequence 1–395 2 Protein–DNA Heteromer Protein 13 DNA 2 pentadecameric （15） Consistent with all polymers
B8YB54 4v8s ;DNA-DIRECTED RNA POLYMERASE SUBUNIT A'' ; Author chain BC Reference sequence 1–395 2 Protein–DNA Heteromer Protein 13 DNA 2 pentadecameric （15） 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.