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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：Q91WR5 New Search
3PDB entries
5Biological assembly
10chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
Q91WR5 2ipg 3(17)alpha-hydroxysteroid dehydrogenase Author chain A Reference sequence 5–323 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q91WR5 2ipg 3(17)alpha-hydroxysteroid dehydrogenase Author chain B Reference sequence 5–323 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q91WR5 3cv6 Aldo-keto reductase family 1 member C21 Author chain A Reference sequence 1–323 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
Q91WR5 3cv6 Aldo-keto reductase family 1 member C21 Author chain B Reference sequence 1–323 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
Q91WR5 3cv6 Aldo-keto reductase family 1 member C21 Author chain A Reference sequence 1–323 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
Q91WR5 3cv6 Aldo-keto reductase family 1 member C21 Author chain B Reference sequence 1–323 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
Q91WR5 3fjn Aldo-keto reductase family 1 member C21 Author chain A Reference sequence 1–323 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
Q91WR5 3fjn Aldo-keto reductase family 1 member C21 Author chain B Reference sequence 1–323 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
Q91WR5 3fjn Aldo-keto reductase family 1 member C21 Author chain A Reference sequence 1–323 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
Q91WR5 3fjn Aldo-keto reductase family 1 member C21 Author chain B Reference sequence 1–323 2 Protein monomer Monomer Protein 1 monomeric （1） 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.