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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：P03000 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
P03000 1tif TRANSLATION INITIATION FACTOR 3 Author chain A Reference sequence 1–77 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P03000 1tig TRANSLATION INITIATION FACTOR 3 Author chain A Reference sequence 78–171 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P03000 5me0 Translation initiation factor IF-3 Author chain Y Reference sequence 2–172 1 Protein–RNA Heteromer Protein 24 RNA 2 26-meric （26） Consistent with all polymers
P03000 5me1 Translation initiation factor IF-3 Author chain Y Reference sequence 2–172 1 Protein–RNA Heteromer Protein 24 RNA 2 26-meric （26） Consistent with all polymers

“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.