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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：Q00004 New Search
5PDB entries
5Biological assembly
6chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
Q00004 4ue5 SIGNAL RECOGNITION PARTICLE SUBUNIT SRP68 Author chain C Reference sequence 55–249 1 Protein–RNA Heteromer Protein 6 RNA 1 heptameric （7） Consistent with all polymers
Q00004 6frk Signal recognition particle subunit SRP68 Author chain u Reference sequence 55–622 1 Protein–RNA Heteromer Protein 53 RNA 5 58-meric （58） Consistent with all polymers
Q00004 6r6g Signal recognition particle subunit SRP68 Author chain AI Reference sequence 55–249 1 Protein–RNA Heteromer Protein 84 RNA 8 92-meric （92） Consistent with all polymers
Q00004 7obq Signal recognition particle subunit SRP68,Signal recognition particle subunit SRP68 Author chain u Reference sequence 1–493 1 Protein–RNA Heteromer Protein 7 RNA 1 octameric （8） Consistent with all polymers
Q00004 7obq Signal recognition particle subunit SRP68,Signal recognition particle subunit SRP68 Author chain u Reference sequence 494–622 1 Protein–RNA Heteromer Protein 7 RNA 1 octameric （8） Consistent with all polymers
Q00004 7obr Signal recognition particle subunit SRP68 Author chain u Reference sequence 1–622 1 Protein–RNA Heteromer Protein 49 RNA 4 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.