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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：P0A7S4 New Search
2PDB entries
3Biological assembly
3chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
P0A7S4 2ykr 30S RIBOSOMAL PROTEIN S12 Author chain L Reference sequence 2–124 1 Protein–RNA Heteromer Protein 21 RNA 1 22-meric （22） Consistent with all polymers
P0A7S4 4v5b 30S RIBOSOMAL PROTEIN S12 Author chain DL Reference sequence 2–124 1 Insufficient information Heteromer Protein 50 RNA 3 53-meric （53） Consistent with all polymers
P0A7S4 4v5b 30S RIBOSOMAL PROTEIN S12 Author chain DL Reference sequence 2–124 2 Insufficient information Heteromer Protein 49 RNA 3 52-meric （52） 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.