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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：P15391 New Search
4PDB entries
4Biological assembly
4chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
P15391 6al5 B-lymphocyte antigen CD19 Author chain A Reference sequence 21–277 1 Protein heterocomplex Heteromer Protein 3 trimeric （3） Consistent with protein count
P15391 7jic B-lymphocyte antigen CD19 Author chain A Reference sequence 20–327 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P15391 7urv B-lymphocyte antigen CD19 Author chain C Reference sequence 21–277 1 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
P15391 7urx B-lymphocyte antigen CD19 Author chain C Reference sequence 1–278 1 Protein heterocomplex Heteromer Protein 3 trimeric （3） 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.