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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：P13489 New Search
4PDB entries
5Biological assembly
10chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
P13489 1a4y RIBONUCLEASE INHIBITOR Author chain A Reference sequence 1–460 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P13489 1a4y RIBONUCLEASE INHIBITOR Author chain D Reference sequence 1–460 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P13489 1z7x Ribonuclease inhibitor Author chain W Reference sequence 1–460 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P13489 1z7x Ribonuclease inhibitor Author chain Y Reference sequence 1–460 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P13489 2bex RIBONUCLEASE INHIBITOR Author chain A Reference sequence 1–460 1 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
P13489 2bex RIBONUCLEASE INHIBITOR Author chain B Reference sequence 1–460 1 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
P13489 2bex RIBONUCLEASE INHIBITOR Author chain A Reference sequence 1–460 2 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
P13489 2bex RIBONUCLEASE INHIBITOR Author chain B Reference sequence 1–460 2 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
P13489 2q4g Ribonuclease inhibitor Author chain W Reference sequence 1–461 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P13489 2q4g Ribonuclease inhibitor Author chain Y Reference sequence 1–461 1 Protein heterocomplex Heteromer 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.