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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：A0A1S3APZ1 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
A0A1S3APZ1 7nwg 40S ribosomal protein S9 Author chain K2 Reference sequence 1–194 1 Protein–RNA Heteromer Protein 79 RNA 7 86-meric （86） Consistent with all polymers
A0A1S3APZ1 7nwh 40S ribosomal protein S9 Author chain JJ Reference sequence 1–194 1 Protein–RNA Heteromer Protein 79 RNA 5 84-meric （84） Consistent with all polymers
A0A1S3APZ1 7nwi 40S ribosomal protein S9 Author chain JJ Reference sequence 1–194 1 Protein–RNA Heteromer Protein 78 RNA 6 84-meric （84） 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.