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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：Q12339 New Search
3PDB entries
3Biological assembly
4chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
Q12339 4mj7 rRNA-processing protein UTP23 Author chain A Reference sequence 1–159 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q12339 4mj7 rRNA-processing protein UTP23 Author chain B Reference sequence 1–159 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q12339 9g25 rRNA-processing protein UTP23 Author chain K Reference sequence 1–254 1 Protein–RNA Heteromer Protein 12 RNA 2 14-meric （14） Consistent with all polymers
Q12339 9g28 rRNA-processing protein UTP23 Author chain K Reference sequence 1–254 1 Protein–RNA Heteromer Protein 12 RNA 2 14-meric （14） 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.