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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：O43278 New Search
6PDB entries
7Biological assembly
9chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
O43278 1yc0 Kunitz-type protease inhibitor 1 Author chain I Reference sequence 245–303 1 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
O43278 2msx Kunitz-type protease inhibitor 1 Author chain A Reference sequence 47–152 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
O43278 4isl Kunitz-type protease inhibitor 1 Author chain B Reference sequence 245–304 1 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
O43278 4iso Kunitz-type protease inhibitor 1 Author chain B Reference sequence 245–304 1 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
O43278 5ezd Kunitz-type protease inhibitor 1 Author chain A Reference sequence 168–303 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
O43278 5ezd Kunitz-type protease inhibitor 1 Author chain B Reference sequence 168–303 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
O43278 5ezd Kunitz-type protease inhibitor 1 Author chain A Reference sequence 168–303 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
O43278 5ezd Kunitz-type protease inhibitor 1 Author chain B Reference sequence 168–303 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
O43278 5h7v Kunitz-type protease inhibitor 1 Author chain A Reference sequence 36–441 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.