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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：D4P3R6 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
D4P3R6 7sqc FAP221 Author chain M0 Reference sequence 1–971 1 Protein heterocomplex Heteromer Protein 406 406-meric （406） Consistent with protein count
D4P3R6 7sqc FAP221 Author chain M1 Reference sequence 1–971 1 Protein heterocomplex Heteromer Protein 406 406-meric （406） 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.