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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：P20823 New Search
6PDB entries
8Biological assembly
16chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
P20823 1ic8 HEPATOCYTE NUCLEAR FACTOR 1-ALPHA Author chain A Reference sequence 85–278 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
P20823 1ic8 HEPATOCYTE NUCLEAR FACTOR 1-ALPHA Author chain B Reference sequence 85–278 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
P20823 2gyp Hepatocyte nuclear factor 1-alpha Author chain A Reference sequence 1–33 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P20823 2gyp Hepatocyte nuclear factor 1-alpha Author chain B Reference sequence 1–33 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P20823 2gyp Hepatocyte nuclear factor 1-alpha Author chain A Reference sequence 1–33 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P20823 2gyp Hepatocyte nuclear factor 1-alpha Author chain B Reference sequence 1–33 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P20823 2gyp Hepatocyte nuclear factor 1-alpha Author chain A Reference sequence 1–33 3 Protein homooligomer Homooligomer Protein 4 tetrameric （4） Consistent with protein count
P20823 2gyp Hepatocyte nuclear factor 1-alpha Author chain B Reference sequence 1–33 3 Protein homooligomer Homooligomer Protein 4 tetrameric （4） Consistent with protein count
P20823 8pi7 Hepatocyte nuclear factor 1-alpha Author chain A Reference sequence 83–279 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
P20823 8pi7 Hepatocyte nuclear factor 1-alpha Author chain B Reference sequence 83–279 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
P20823 8pi8 Hepatocyte nuclear factor 1-alpha Author chain A Reference sequence 83–279 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
P20823 8pi8 Hepatocyte nuclear factor 1-alpha Author chain B Reference sequence 83–279 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
P20823 8pi9 Hepatocyte nuclear factor 1-alpha Author chain A Reference sequence 83–279 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
P20823 8pi9 Hepatocyte nuclear factor 1-alpha Author chain B Reference sequence 83–279 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
P20823 8pia Hepatocyte nuclear factor 1-alpha Author chain A Reference sequence 83–279 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
P20823 8pia Hepatocyte nuclear factor 1-alpha Author chain B Reference sequence 83–279 1 Protein–DNA Homooligomer 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.