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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：P12018 New Search
3PDB entries
4Biological assembly
5chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
P12018 2h32 Immunoglobulin iota chain Author chain A Reference sequence 20–145 1 Protein heterocomplex Heteromer Protein 3 trimeric （3） Consistent with protein count
P12018 2h32 Immunoglobulin iota chain Author chain A Reference sequence 20–145 2 Protein heterocomplex Heteromer Protein 6 hexameric （6） Consistent with protein count
P12018 2h3n VpreB protein Author chain A Reference sequence 21–119 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P12018 2h3n VpreB protein Author chain C Reference sequence 21–119 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P12018 3bj9 Immunoglobulin iota chain, Immunoglobulin lambda-like polypeptide 1 Author chain 1 Reference sequence 22–121 1 Protein monomer Monomer Protein 1 monomeric （1） 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.