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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：Q9UL18 New Search
8PDB entries
8Biological assembly
8chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
Q9UL18 1si2 Eukaryotic translation initiation factor 2C 1 Author chain A Reference sequence 225–369 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
Q9UL18 1si3 Eukaryotic translation initiation factor 2C 1 Author chain A Reference sequence 225–369 1 Protein–RNA Homooligomer Protein 2 RNA 2 tetrameric （4） Consistent with all polymers
Q9UL18 4kre Protein argonaute-1 Author chain A Reference sequence 1–857 1 Protein–RNA Monomer Protein 1 RNA 1 dimeric （2） Consistent with all polymers
Q9UL18 4krf Protein argonaute-1 Author chain A Reference sequence 1–857 1 Protein–RNA Monomer Protein 1 RNA 1 dimeric （2） Consistent with all polymers
Q9UL18 4kxt Protein argonaute-1 Author chain A Reference sequence 1–857 1 Protein–RNA Monomer Protein 1 RNA 1 dimeric （2） Consistent with all polymers
Q9UL18 5w6v Protein argonaute-1 Author chain A Reference sequence 1–857 1 Protein–RNA Heteromer Protein 2 RNA 1 trimeric （3） Consistent with all polymers
Q9UL18 9q3f Protein argonaute-1 Author chain A Reference sequence 1–857 1 Protein–RNA Monomer Protein 1 RNA 1 dimeric （2） Consistent with all polymers
Q9UL18 9q3g Protein argonaute-1 Author chain A Reference sequence 1–857 1 Protein–RNA Monomer Protein 1 RNA 1 dimeric （2） 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.