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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：Q9F4C9 New Search
2PDB entries
3Biological assembly
6chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
Q9F4C9 2c1l RESTRICTION ENDONUCLEASE Author chain A Reference sequence 1–358 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q9F4C9 2c1l RESTRICTION ENDONUCLEASE Author chain B Reference sequence 1–358 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q9F4C9 3zi5 RESTRICTION ENDONUCLEASE Author chain A Reference sequence 193–358 1 Protein–DNA Monomer Protein 1 DNA 2 trimeric （3） Consistent with all polymers
Q9F4C9 3zi5 RESTRICTION ENDONUCLEASE Author chain D Reference sequence 193–358 1 Protein–DNA Monomer Protein 1 DNA 2 trimeric （3） Consistent with all polymers
Q9F4C9 3zi5 RESTRICTION ENDONUCLEASE Author chain A Reference sequence 193–358 2 Protein–DNA Monomer Protein 1 DNA 2 trimeric （3） Consistent with all polymers
Q9F4C9 3zi5 RESTRICTION ENDONUCLEASE Author chain D Reference sequence 193–358 2 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.