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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：P21827 New Search
4PDB entries
4Biological assembly
4chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
P21827 3of7 Regulator of chromosome condensation Author chain A Reference sequence 27–482 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P21827 4oih Guanine nucleotide exchange factor SRM1 Author chain B Reference sequence 1–25 1 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
P21827 5hq2 Guanine nucleotide exchange factor SRM1 Author chain K Reference sequence 2–482 1 Protein–DNA Heteromer Protein 12 DNA 4 hexadecameric （16） Consistent with all polymers
P21827 5t94 Guanine nucleotide exchange factor SRM1 Author chain A Reference sequence 1–482 1 Protein heterocomplex Heteromer 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.