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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：P0A1S2 New Search
3PDB entries
4Biological assembly
7chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
P0A1S2 2l93 DNA-binding protein H-NS Author chain A Reference sequence 91–137 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P0A1S2 3nr7 DNA-binding protein H-NS Author chain A Reference sequence 1–83 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P0A1S2 3nr7 DNA-binding protein H-NS Author chain B Reference sequence 1–83 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P0A1S2 3nr7 DNA-binding protein H-NS Author chain A Reference sequence 1–83 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P0A1S2 3nr7 DNA-binding protein H-NS Author chain B Reference sequence 1–83 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P0A1S2 4icg DNA-binding protein H-NS Author chain A Reference sequence 3–46 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P0A1S2 4icg DNA-binding protein H-NS Author chain B Reference sequence 3–46 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） 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.