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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：P55873 New Search
30PDB entries
30Biological assembly
30chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
P55873 3j3v 50S ribosomal protein L20 Author chain Q Reference sequence 1–119 1 Protein–RNA Heteromer Protein 22 RNA 2 24-meric （24） Consistent with all polymers
P55873 3j3w 50S ribosomal protein L20 Author chain Q Reference sequence 1–119 1 Protein–RNA Heteromer Protein 19 RNA 1 eicosameric （20） Consistent with all polymers
P55873 3j9w 50S ribosomal protein bL20 Author chain BT Reference sequence 1–119 1 Protein–RNA Heteromer Protein 49 RNA 5 54-meric （54） Consistent with all polymers
P55873 5njt 50S ribosomal protein L20 Author chain j Reference sequence 2–118 1 Protein–RNA Heteromer Protein 48 RNA 3 32-meric （32） Review required
P55873 6ha1 50S ribosomal protein L20 Author chain Q Reference sequence 1–119 1 Protein–RNA Heteromer Protein 46 RNA 5 51-meric （51） Consistent with all polymers
P55873 6ha8 50S ribosomal protein L20 Author chain Q Reference sequence 1–119 1 Protein–RNA Heteromer Protein 48 RNA 5 53-meric （53） Consistent with all polymers
P55873 6htq 50S ribosomal protein L20 Author chain Q Reference sequence 2–118 1 Protein–RNA Heteromer Protein 47 RNA 6 53-meric （53） Consistent with all polymers
P55873 6tnn 50S ribosomal protein L20 Author chain j Reference sequence 1–119 1 Protein–RNA Heteromer Protein 29 RNA 2 31-meric （31） Consistent with all polymers
P55873 6tpq 50S ribosomal protein L20 Author chain j Reference sequence 1–119 1 Protein–RNA Heteromer Protein 29 RNA 2 31-meric （31） Consistent with all polymers
P55873 7aqc 50S ribosomal protein L20 Author chain Q Reference sequence 1–119 1 Protein–RNA Heteromer Protein 30 RNA 4 34-meric （34） Consistent with all polymers
P55873 7aqd 50S ribosomal protein L20 Author chain Q Reference sequence 1–119 1 Protein–RNA Heteromer Protein 29 RNA 3 32-meric （32） Consistent with all polymers
P55873 7as8 50S ribosomal protein L20 Author chain U Reference sequence 1–119 1 Protein–RNA Heteromer Protein 30 RNA 3 33-meric （33） Consistent with all polymers
P55873 7as9 50S ribosomal protein L20 Author chain U Reference sequence 1–119 1 Protein–RNA Heteromer Protein 29 RNA 3 32-meric （32） Consistent with all polymers
P55873 7o5b 50S ribosomal protein L20 Author chain n Reference sequence 1–119 1 Protein–RNA Heteromer Protein 50 RNA 6 54-meric （54） Review required
P55873 7ope 50S ribosomal protein L20 Author chain U Reference sequence 1–119 1 Protein–RNA Heteromer Protein 30 RNA 3 33-meric （33） Consistent with all polymers
P55873 7qv1 50S ribosomal protein L20 Author chain Q Reference sequence 1–119 1 Protein–RNA Heteromer Protein 48 RNA 5 53-meric （53） Consistent with all polymers
P55873 7qv2 50S ribosomal protein L20 Author chain Q Reference sequence 1–119 1 Protein–RNA Heteromer Protein 47 RNA 6 53-meric （53） Consistent with all polymers
P55873 7qv3 50S ribosomal protein L20 Author chain Q Reference sequence 1–119 1 Protein–RNA Heteromer Protein 50 RNA 5 55-meric （55） Consistent with all polymers
P55873 7s9u 50S ribosomal protein L20 Author chain Q Reference sequence 1–119 1 Protein–RNA Heteromer Protein 18 RNA 1 nonadecameric （19） Consistent with all polymers
P55873 7sae 50S ribosomal protein L20 Author chain Q Reference sequence 1–119 1 Protein–RNA Heteromer Protein 18 RNA 1 nonadecameric （19） Consistent with all polymers
P55873 8buu 50S ribosomal protein L20 Author chain Q Reference sequence 1–119 1 Protein–RNA Heteromer Protein 46 RNA 5 51-meric （51） Consistent with all polymers
P55873 8qcq Large ribosomal subunit protein bL20 Author chain Q Reference sequence 1–119 1 Protein–RNA Heteromer Protein 44 RNA 6 50-meric （50） Consistent with all polymers
P55873 8s1p Large ribosomal subunit protein bL20 Author chain Q Reference sequence 1–119 1 Protein–RNA Heteromer Protein 29 RNA 3 32-meric （32） Consistent with all polymers
P55873 8s1u Large ribosomal subunit protein bL20 Author chain Q Reference sequence 1–119 1 Protein–RNA Heteromer Protein 29 RNA 4 33-meric （33） Consistent with all polymers
P55873 9bs0 Large ribosomal subunit protein bL20 Author chain L Reference sequence 2–119 1 Protein–RNA Heteromer Protein 23 RNA 2 25-meric （25） Consistent with all polymers
P55873 9bsl Large ribosomal subunit protein bL20 Author chain L Reference sequence 2–119 1 Protein–RNA Heteromer Protein 21 RNA 1 22-meric （22） Consistent with all polymers
P55873 9bss Large ribosomal subunit protein bL20 Author chain L Reference sequence 2–119 1 Protein–RNA Heteromer Protein 22 RNA 2 24-meric （24） Consistent with all polymers
P55873 9fy1 Large ribosomal subunit protein bL20 Author chain Q Reference sequence 1–119 1 Protein–RNA Heteromer Protein 48 RNA 5 53-meric （53） Consistent with all polymers
P55873 9fy2 Large ribosomal subunit protein bL20 Author chain Q Reference sequence 1–119 1 Protein–RNA Heteromer Protein 47 RNA 5 52-meric （52） Consistent with all polymers
P55873 9fy3 Large ribosomal subunit protein bL20 Author chain Q Reference sequence 1–119 1 Protein–RNA Heteromer Protein 47 RNA 6 53-meric （53） 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.