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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：Q12440 New Search
4PDB entries
4Biological assembly
7chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
Q12440 1ldd Anaphase Promoting Complex Author chain A Reference sequence 773–846 1 Protein homooligomer Homooligomer Protein 4 tetrameric （4） Consistent with protein count
Q12440 1ldd Anaphase Promoting Complex Author chain B Reference sequence 773–846 1 Protein homooligomer Homooligomer Protein 4 tetrameric （4） Consistent with protein count
Q12440 1ldd Anaphase Promoting Complex Author chain C Reference sequence 773–846 1 Protein homooligomer Homooligomer Protein 4 tetrameric （4） Consistent with protein count
Q12440 1ldd Anaphase Promoting Complex Author chain D Reference sequence 773–846 1 Protein homooligomer Homooligomer Protein 4 tetrameric （4） Consistent with protein count
Q12440 8a3t Anaphase-promoting complex subunit 2 Author chain T Reference sequence 1–853 1 Protein heterocomplex Heteromer Protein 19 nonadecameric （19） Consistent with protein count
Q12440 8a5y Anaphase-promoting complex subunit 2 Author chain T Reference sequence 1–853 1 Protein heterocomplex Heteromer Protein 17 heptadecameric （17） Consistent with protein count
Q12440 8a61 Anaphase-promoting complex subunit 2 Author chain T Reference sequence 1–853 1 Protein heterocomplex Heteromer Protein 17 heptadecameric （17） 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.