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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：Q9RY64 New Search
24PDB entries
24Biological assembly
24chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
Q9RY64 1nkw 50S ribosomal protein L21 Author chain P Reference sequence 1–100 1 Protein–RNA Heteromer Protein 29 RNA 2 31-meric （31） Consistent with all polymers
Q9RY64 1nwx ribosomal protein L21 Author chain P Reference sequence 70–169 1 Protein–RNA Heteromer Protein 29 RNA 2 31-meric （31） Consistent with all polymers
Q9RY64 1nwy ribosomal protein L21 Author chain P Reference sequence 70–169 1 Protein–RNA Heteromer Protein 29 RNA 2 31-meric （31） Consistent with all polymers
Q9RY64 1sm1 50S RIBOSOMAL PROTEIN L21 Author chain P Reference sequence 70–169 1 Protein–RNA Heteromer Protein 30 RNA 2 32-meric （32） Consistent with all polymers
Q9RY64 1xbp 50S ribosomal protein L21 Author chain P Reference sequence 1–100 1 Protein–RNA Heteromer Protein 29 RNA 2 31-meric （31） Consistent with all polymers
Q9RY64 2zjp 50S RIBOSOMAL PROTEIN L21 Author chain O Reference sequence 1–100 1 Protein–RNA Heteromer Protein 29 RNA 2 31-meric （31） Consistent with all polymers
Q9RY64 2zjq 50S ribosomal protein L21 Author chain O Reference sequence 1–100 1 Protein–RNA Heteromer Protein 29 RNA 2 31-meric （31） Consistent with all polymers
Q9RY64 2zjr 50S ribosomal protein L21 Author chain O Reference sequence 1–100 1 Protein–RNA Heteromer Protein 28 RNA 2 30-meric （30） Consistent with all polymers
Q9RY64 3cf5 50S RIBOSOMAL PROTEIN L21 Author chain O Reference sequence 1–100 1 Protein–RNA Heteromer Protein 29 RNA 2 31-meric （31） Consistent with all polymers
Q9RY64 3dll 50S ribosomal protein L21 Author chain O Reference sequence 1–100 1 Protein–RNA Heteromer Protein 28 RNA 2 30-meric （30） Consistent with all polymers
Q9RY64 3pio 50S ribosomal protein L21 Author chain O Reference sequence 1–100 1 Protein–RNA Heteromer Protein 28 RNA 2 30-meric （30） Consistent with all polymers
Q9RY64 3pip 50S ribosomal protein L21 Author chain O Reference sequence 1–100 1 Protein–RNA Heteromer Protein 28 RNA 2 30-meric （30） Consistent with all polymers
Q9RY64 4io9 50S ribosomal protein L21 Author chain O Reference sequence 1–100 1 Protein–RNA Heteromer Protein 28 RNA 2 30-meric （30） Consistent with all polymers
Q9RY64 4ioa 50S ribosomal protein L21 Author chain O Reference sequence 1–100 1 Protein–RNA Heteromer Protein 28 RNA 2 30-meric （30） Consistent with all polymers
Q9RY64 4ioc 50S ribosomal protein L21 Author chain O Reference sequence 1–100 1 Protein–RNA Heteromer Protein 28 RNA 2 30-meric （30） Consistent with all polymers
Q9RY64 4u67 50S ribosomal protein L21 Author chain O Reference sequence 1–100 1 Protein–RNA Heteromer Protein 26 RNA 2 28-meric （28） Consistent with all polymers
Q9RY64 4wfn 50S ribosomal protein L21 Author chain O Reference sequence 1–100 1 Protein–RNA Heteromer Protein 26 RNA 2 28-meric （28） Consistent with all polymers
Q9RY64 5dm6 50S ribosomal protein L21 Author chain O Reference sequence 5–98 1 Protein–RNA Heteromer Protein 28 RNA 2 30-meric （30） Consistent with all polymers
Q9RY64 5dm7 50S ribosomal protein L21 Author chain O Reference sequence 5–98 1 Protein–RNA Heteromer Protein 28 RNA 2 30-meric （30） Consistent with all polymers
Q9RY64 5jvg 50S ribosomal protein L21 Author chain O Reference sequence 1–100 1 Protein–RNA Heteromer Protein 27 RNA 2 29-meric （29） Consistent with all polymers
Q9RY64 5jvh 50S ribosomal protein L21 Author chain O Reference sequence 1–100 1 Protein–RNA Heteromer Protein 26 RNA 2 28-meric （28） Consistent with all polymers
Q9RY64 7a0r 50S ribosomal protein L21 Author chain O Reference sequence 1–98 1 Protein–RNA Heteromer Protein 26 RNA 2 28-meric （28） Consistent with all polymers
Q9RY64 7a0s 50S ribosomal protein L21 Author chain O Reference sequence 1–98 1 Protein–RNA Heteromer Protein 26 RNA 2 28-meric （28） Consistent with all polymers
Q9RY64 7a18 50S ribosomal protein L21 Author chain O Reference sequence 1–98 1 Protein–RNA Heteromer Protein 26 RNA 2 28-meric （28） 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.