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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：P23657 New Search
10PDB entries
13Biological assembly
34chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
P23657 1eyu TYPE II RESTRICTION ENZYME PVUII Author chain A Reference sequence 1–157 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
P23657 1eyu TYPE II RESTRICTION ENZYME PVUII Author chain B Reference sequence 1–157 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
P23657 1f0o TYPE II RESTRICTION ENZYME PVUII Author chain A Reference sequence 1–157 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
P23657 1f0o TYPE II RESTRICTION ENZYME PVUII Author chain B Reference sequence 1–157 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
P23657 1h56 TYPE II RESTRICTION ENZYME PVUII Author chain A Reference sequence 2–157 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P23657 1h56 TYPE II RESTRICTION ENZYME PVUII Author chain B Reference sequence 2–157 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P23657 1k0z Type II restriction enzyme PvuII Author chain A Reference sequence 2–157 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P23657 1k0z Type II restriction enzyme PvuII Author chain B Reference sequence 2–157 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P23657 1ni0 Type II restriction enzyme PvuII Author chain A Reference sequence 1–157 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P23657 1ni0 Type II restriction enzyme PvuII Author chain B Reference sequence 1–157 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P23657 1ni0 Type II restriction enzyme PvuII Author chain C Reference sequence 1–157 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P23657 1ni0 Type II restriction enzyme PvuII Author chain A Reference sequence 1–157 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P23657 1ni0 Type II restriction enzyme PvuII Author chain B Reference sequence 1–157 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P23657 1ni0 Type II restriction enzyme PvuII Author chain C Reference sequence 1–157 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P23657 1pvi PROTEIN (PVUII (E.C.3.1.21.4)) Author chain A Reference sequence 1–157 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
P23657 1pvi PROTEIN (PVUII (E.C.3.1.21.4)) Author chain B Reference sequence 1–157 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
P23657 1pvu Pvu II Author chain A Reference sequence 2–157 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P23657 1pvu Pvu II Author chain B Reference sequence 2–157 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P23657 2pvi TYPE II RESTRICTION ENZYME PVUII Author chain A Reference sequence 1–157 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
P23657 2pvi TYPE II RESTRICTION ENZYME PVUII Author chain B Reference sequence 1–157 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
P23657 3ksk Type-2 restriction enzyme PvuII Author chain A Reference sequence 2–157 1 Protein homooligomer Homooligomer Protein 4 tetrameric （4） Consistent with protein count
P23657 3ksk Type-2 restriction enzyme PvuII Author chain A Reference sequence 2–157 1 Protein homooligomer Homooligomer Protein 4 tetrameric （4） Consistent with protein count
P23657 3ksk Type-2 restriction enzyme PvuII Author chain B Reference sequence 2–157 1 Protein homooligomer Homooligomer Protein 4 tetrameric （4） Consistent with protein count
P23657 3ksk Type-2 restriction enzyme PvuII Author chain B Reference sequence 2–157 1 Protein homooligomer Homooligomer Protein 4 tetrameric （4） Consistent with protein count
P23657 3ksk Type-2 restriction enzyme PvuII Author chain A Reference sequence 2–157 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P23657 3ksk Type-2 restriction enzyme PvuII Author chain A Reference sequence 2–157 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P23657 3ksk Type-2 restriction enzyme PvuII Author chain B Reference sequence 2–157 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P23657 3ksk Type-2 restriction enzyme PvuII Author chain B Reference sequence 2–157 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P23657 3ksk Type-2 restriction enzyme PvuII Author chain A Reference sequence 2–157 3 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P23657 3ksk Type-2 restriction enzyme PvuII Author chain A Reference sequence 2–157 3 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P23657 3ksk Type-2 restriction enzyme PvuII Author chain B Reference sequence 2–157 3 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P23657 3ksk Type-2 restriction enzyme PvuII Author chain B Reference sequence 2–157 3 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P23657 3pvi PROTEIN (PVUII ENDONUCLEASE) Author chain A Reference sequence 1–157 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
P23657 3pvi PROTEIN (PVUII ENDONUCLEASE) Author chain B Reference sequence 1–157 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） 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.