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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：Q9X017 New Search
5PDB entries
5Biological assembly
5chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
Q9X017 2etj Ribonuclease HII Author chain A Reference sequence 1–238 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
Q9X017 3o3f Ribonuclease HII Author chain A Reference sequence 2–223 1 Protein–DNA Monomer Protein 1 DNA 2 trimeric （3） Consistent with all polymers
Q9X017 3o3g Ribonuclease HII Author chain A Reference sequence 2–223 1 Protein–DNA Monomer Protein 1 DNA 2 trimeric （3） Consistent with all polymers
Q9X017 3o3h Ribonuclease HII Author chain A Reference sequence 2–223 1 Protein–DNA Monomer Protein 1 DNA 2 trimeric （3） Consistent with all polymers
Q9X017 4hht Ribonuclease HII Author chain A Reference sequence 2–238 1 Protein–DNA Monomer Protein 1 DNA 2 trimeric （3） 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.