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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：O43639 New Search
9PDB entries
9Biological assembly
10chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
O43639 1u5s Cytoplasmic protein NCK2 Author chain A Reference sequence 192–262 1 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
O43639 1wx6 Cytoplasmic protein NCK2 Author chain A Reference sequence 188–265 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
O43639 1z3k Cytoplasmic protein NCK2 Author chain A Reference sequence 283–380 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
O43639 2b86 Cytoplasmic protein NCK2 Author chain A Reference sequence 1–59 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
O43639 2cia CYTOPLASMIC PROTEIN NCK2 Author chain A Reference sequence 284–380 1 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
O43639 2frw Cytoplasmic protein NCK2 Author chain A Reference sequence 114–170 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
O43639 2fry Cytoplasmic protein NCK2 Author chain A Reference sequence 198–256 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
O43639 2jxb T-cell surface glycoprotein CD3 epsilon chain, Cytoplasmic protein NCK2 Author chain A Reference sequence 1–59 1 Insufficient information Monomer Protein 1 monomeric （1） Consistent with protein count
O43639 4e6r Cytoplasmic protein NCK2 Author chain A Reference sequence 114–170 1 Protein homooligomer Homooligomer Protein 4 tetrameric （4） Consistent with protein count
O43639 4e6r Cytoplasmic protein NCK2 Author chain B Reference sequence 114–170 1 Protein homooligomer Homooligomer Protein 4 tetrameric （4） 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.