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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：Q91RS4 New Search
6PDB entries
6Biological assembly
12chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
Q91RS4 1rtl NS3 protease/helicase Author chain A Reference sequence 1–181 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
Q91RS4 1rtl NS3 protease/helicase Author chain B Reference sequence 1–181 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
Q91RS4 2a4q ;NS3 protease/helicase' ; Author chain A Reference sequence 1–181 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
Q91RS4 2a4q ;NS3 protease/helicase' ; Author chain C Reference sequence 1–181 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
Q91RS4 2a4r NS3 protease/helicase Author chain A Reference sequence 1–181 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
Q91RS4 2a4r NS3 protease/helicase Author chain C Reference sequence 1–181 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
Q91RS4 2f9u ;NS3 protease/helicase' ; Author chain A Reference sequence 1–181 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
Q91RS4 2f9u ;NS3 protease/helicase' ; Author chain C Reference sequence 1–181 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
Q91RS4 2obo HCV NS3 protease Author chain A Reference sequence 1–181 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
Q91RS4 2obo HCV NS3 protease Author chain C Reference sequence 1–181 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
Q91RS4 2xcn NS3 PROTEASE Author chain A Reference sequence 1–180 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
Q91RS4 2xcn NS3 PROTEASE Author chain B Reference sequence 1–180 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.