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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：Q91CD4 New Search
3PDB entries
6Biological assembly
6chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
Q91CD4 1jsd HAEMAGGLUTININ (HA1 CHAIN) Author chain A Reference sequence 19–337 1 Other combination Heteromer Protein 2 其他 4 dimeric （2） Consistent with protein count
Q91CD4 1jsd HAEMAGGLUTININ (HA1 CHAIN) Author chain A Reference sequence 19–337 2 Other combination Heteromer Protein 6 其他 12 hexameric （6） Consistent with protein count
Q91CD4 1jsh HAEMAGGLUTININ (HA1 CHAIN) Author chain A Reference sequence 19–337 1 Other combination Heteromer Protein 2 其他 5 dimeric （2） Consistent with protein count
Q91CD4 1jsh HAEMAGGLUTININ (HA1 CHAIN) Author chain A Reference sequence 19–337 2 Other combination Heteromer Protein 6 其他 15 hexameric （6） Consistent with protein count
Q91CD4 1jsi HAEMAGGLUTININ (HA1 CHAIN) Author chain A Reference sequence 19–337 1 Other combination Heteromer Protein 2 其他 5 dimeric （2） Consistent with protein count
Q91CD4 1jsi HAEMAGGLUTININ (HA1 CHAIN) Author chain A Reference sequence 19–337 2 Other combination Heteromer Protein 6 其他 15 hexameric （6） 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.