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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：O66659 New Search
3PDB entries
3Biological assembly
9chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
O66659 1l8q Chromosomal replication initiator protein dnaA Author chain A Reference sequence 76–399 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
O66659 2hcb Chromosomal replication initiator protein dnaA Author chain A Reference sequence 77–399 1 Protein homooligomer Homooligomer Protein 4 tetrameric （4） Consistent with protein count
O66659 2hcb Chromosomal replication initiator protein dnaA Author chain B Reference sequence 77–399 1 Protein homooligomer Homooligomer Protein 4 tetrameric （4） Consistent with protein count
O66659 2hcb Chromosomal replication initiator protein dnaA Author chain C Reference sequence 77–399 1 Protein homooligomer Homooligomer Protein 4 tetrameric （4） Consistent with protein count
O66659 2hcb Chromosomal replication initiator protein dnaA Author chain D Reference sequence 77–399 1 Protein homooligomer Homooligomer Protein 4 tetrameric （4） Consistent with protein count
O66659 3r8f Chromosomal replication initiator protein dnaA Author chain A Reference sequence 76–399 1 Protein–DNA Homooligomer Protein 4 DNA 1 pentameric （5） Consistent with all polymers
O66659 3r8f Chromosomal replication initiator protein dnaA Author chain B Reference sequence 76–399 1 Protein–DNA Homooligomer Protein 4 DNA 1 pentameric （5） Consistent with all polymers
O66659 3r8f Chromosomal replication initiator protein dnaA Author chain C Reference sequence 76–399 1 Protein–DNA Homooligomer Protein 4 DNA 1 pentameric （5） Consistent with all polymers
O66659 3r8f Chromosomal replication initiator protein dnaA Author chain D Reference sequence 76–399 1 Protein–DNA Homooligomer Protein 4 DNA 1 pentameric （5） 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.