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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：Q04002 New Search
3PDB entries
4Biological assembly
6chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
Q04002 4xdn Sister chromatid cohesion protein 2 Author chain B Reference sequence 1–181 1 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
Q04002 5w94 Sister chromatid cohesion protein 2 Author chain B Reference sequence 1–181 1 Protein heterocomplex Heteromer Protein 3 trimeric （3） Consistent with protein count
Q04002 5w94 Sister chromatid cohesion protein 2 Author chain D Reference sequence 1–181 1 Protein heterocomplex Heteromer Protein 3 trimeric （3） Consistent with protein count
Q04002 5w94 Sister chromatid cohesion protein 2 Author chain B Reference sequence 1–181 2 Protein heterocomplex Heteromer Protein 3 trimeric （3） Consistent with protein count
Q04002 5w94 Sister chromatid cohesion protein 2 Author chain D Reference sequence 1–181 2 Protein heterocomplex Heteromer Protein 3 trimeric （3） Consistent with protein count
Q04002 6zz6 Sister chromatid cohesion protein 2 Author chain D Reference sequence 1–1493 1 Protein–DNA Heteromer Protein 4 DNA 2 hexameric （6） 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.