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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：O95453 New Search
3PDB entries
5Biological assembly
12chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
O95453 2a1r Poly(A)-specific ribonuclease PARN Author chain A Reference sequence 1–430 1 Protein–RNA Homooligomer Protein 2 RNA 2 tetrameric （4） Consistent with all polymers
O95453 2a1r Poly(A)-specific ribonuclease PARN Author chain B Reference sequence 1–430 1 Protein–RNA Homooligomer Protein 2 RNA 2 tetrameric （4） Consistent with all polymers
O95453 2a1s Poly(A)-specific ribonuclease PARN Author chain A Reference sequence 1–430 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
O95453 2a1s Poly(A)-specific ribonuclease PARN Author chain B Reference sequence 1–430 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
O95453 2a1s Poly(A)-specific ribonuclease PARN Author chain C Reference sequence 1–430 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
O95453 2a1s Poly(A)-specific ribonuclease PARN Author chain D Reference sequence 1–430 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
O95453 2a1s Poly(A)-specific ribonuclease PARN Author chain A Reference sequence 1–430 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
O95453 2a1s Poly(A)-specific ribonuclease PARN Author chain B Reference sequence 1–430 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
O95453 2a1s Poly(A)-specific ribonuclease PARN Author chain C Reference sequence 1–430 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
O95453 2a1s Poly(A)-specific ribonuclease PARN Author chain D Reference sequence 1–430 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
O95453 3ctr Poly(A)-specific ribonuclease PARN Author chain A Reference sequence 445–540 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
O95453 3ctr Poly(A)-specific ribonuclease PARN Author chain A Reference sequence 445–540 2 Protein homooligomer Homooligomer Protein 4 tetrameric （4） 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.