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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：O75691 New Search
3PDB entries
3Biological assembly
3chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
O75691 7mq8 Small subunit processome component 20 homolog Author chain SP Reference sequence 1–2785 1 Protein–RNA Heteromer Protein 71 RNA 4 75-meric （75） Consistent with all polymers
O75691 7mq9 Small subunit processome component 20 homolog Author chain SP Reference sequence 1–2785 1 Protein–RNA Heteromer Protein 70 RNA 4 74-meric （74） Consistent with all polymers
O75691 7mqa Small subunit processome component 20 homolog Author chain SP Reference sequence 1–2785 1 Protein–RNA Heteromer Protein 69 RNA 3 72-meric （72） 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.