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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：Q9P4W9 New Search
3PDB entries
3Biological assembly
3chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
Q9P4W9 9axt Small ribosomal subunit protein eS4C Author chain AH Reference sequence 1–262 1 Protein–RNA Heteromer Protein 71 RNA 4 75-meric （75） Consistent with all polymers
Q9P4W9 9axv Small ribosomal subunit protein eS4C Author chain AH Reference sequence 1–262 1 Protein–RNA Heteromer Protein 72 RNA 7 79-meric （79） Consistent with all polymers
Q9P4W9 9rvu Small ribosomal subunit protein eS4C Author chain AH Reference sequence 1–262 1 Protein–RNA Heteromer Protein 79 RNA 4 82-meric （82） Review required

“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.