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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：Q1JQ91 New Search
6PDB entries
6Biological assembly
6chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
Q1JQ91 5flm DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB4 Author chain D Reference sequence 1–142 1 Other combination Heteromer Protein 12 DNA 2 RNA 1 pentadecameric （15） Consistent with all polymers
Q1JQ91 5oik Polymerase (RNA) II (DNA directed) polypeptide D Author chain D Reference sequence 1–142 1 Other combination Heteromer Protein 14 DNA 2 RNA 1 heptadecameric （17） Consistent with all polymers
Q1JQ91 8qq2 Polymerase (RNA) II (DNA directed) polypeptide D Author chain D Reference sequence 1–142 1 Other combination Heteromer Protein 13 DNA 2 RNA 1 hexadecameric （16） Consistent with all polymers
Q1JQ91 8qw8 Polymerase (RNA) II (DNA directed) polypeptide D Author chain D Reference sequence 1–142 1 Other combination Heteromer Protein 13 DNA 2 RNA 1 hexadecameric （16） Consistent with all polymers
Q1JQ91 8qw9 Polymerase (RNA) II (DNA directed) polypeptide D Author chain D Reference sequence 1–142 1 Other combination Heteromer Protein 13 DNA 2 RNA 1 hexadecameric （16） Consistent with all polymers
Q1JQ91 9xgk DNA-directed RNA polymerase II subunit RPB4 Author chain D Reference sequence 1–142 1 Other combination Heteromer Protein 13 DNA 2 RNA 1 hexadecameric （16） 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.