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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：A4F7P0 New Search
1PDB entries
1Biological assembly
2chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
A4F7P0 2qo3 EryAII Erythromycin polyketide synthase modules 3 and 4 Author chain A Reference sequence 27–922 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
A4F7P0 2qo3 EryAII Erythromycin polyketide synthase modules 3 and 4 Author chain B Reference sequence 27–922 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count

“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.