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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：A0A3A5I3T1 New Search
4PDB entries
4Biological assembly
4chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
A0A3A5I3T1 7qgu 30S ribosomal protein S18 Author chain w Reference sequence 1–79 1 Protein–RNA Heteromer Protein 50 RNA 4 54-meric （54） Consistent with all polymers
A0A3A5I3T1 7qh4 30S ribosomal protein S18 Author chain v Reference sequence 1–79 1 Protein–RNA Heteromer Protein 47 RNA 5 52-meric （52） Consistent with all polymers
A0A3A5I3T1 8qpp 30S ribosomal protein S18 Author chain R Reference sequence 1–79 1 Protein–RNA Heteromer Protein 48 RNA 5 53-meric （53） Consistent with all polymers
A0A3A5I3T1 8r55 30S ribosomal protein S18 Author chain R Reference sequence 1–79 1 Protein–RNA Heteromer Protein 47 RNA 6 53-meric （53） 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.