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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：Q45488 New Search
3PDB entries
3Biological assembly
5chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
Q45488 1d2i PROTEIN (RESTRICTION ENDONUCLEASE BGLII) Author chain A Reference sequence 1–223 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
Q45488 1d2i PROTEIN (RESTRICTION ENDONUCLEASE BGLII) Author chain B Reference sequence 1–223 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
Q45488 1dfm ENDONUCLEASE BGLII Author chain A Reference sequence 1–223 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
Q45488 1dfm ENDONUCLEASE BGLII Author chain B Reference sequence 1–223 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
Q45488 1es8 RESTRICTION ENDONUCLEASE BGLII Author chain A Reference sequence 1–223 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count

“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.