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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：P20263 New Search
5PDB entries
5Biological assembly
6chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
P20263 1ocp OCT-3 Author chain A Reference sequence 217–282 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P20263 3l1p POU domain, class 5, transcription factor 1 Author chain A Reference sequence 131–282 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
P20263 3l1p POU domain, class 5, transcription factor 1 Author chain B Reference sequence 131–282 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
P20263 6ht5 POU domain, class 5, transcription factor 1 Author chain E Reference sequence 131–282 1 Protein–DNA Heteromer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
P20263 8bx1 POU domain, class 5, transcription factor 1 Author chain A Reference sequence 131–282 1 Protein–DNA Heteromer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
P20263 8bx2 POU domain, class 5, transcription factor 1 Author chain A Reference sequence 131–282 1 Protein–DNA Heteromer Protein 2 DNA 2 tetrameric （4） 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.