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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：Q91W12 New Search
2PDB entries
3Biological assembly
5chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
Q91W12 1ay1 TP7 FAB Author chain L Reference sequence 5–212 1 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
Q91W12 1hq4 ANTIBODY HA5-19A4 FAB LIGHT CHAIN Author chain A Reference sequence 24–235 1 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
Q91W12 1hq4 ANTIBODY HA5-19A4 FAB LIGHT CHAIN Author chain C Reference sequence 24–235 1 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
Q91W12 1hq4 ANTIBODY HA5-19A4 FAB LIGHT CHAIN Author chain A Reference sequence 24–235 2 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
Q91W12 1hq4 ANTIBODY HA5-19A4 FAB LIGHT CHAIN Author chain C Reference sequence 24–235 2 Protein heterocomplex Heteromer Protein 2 dimeric （2） 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.