ID   RL21_PARMW              Reviewed;         137 AA.
AC   Q7U8R6;
DT   12-DEC-2006, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2003, sequence version 1.
DT   03-AUG-2022, entry version 94.
DE   RecName: Full=50S ribosomal protein L21 {ECO:0000255|HAMAP-Rule:MF_01363};
GN   Name=rplU {ECO:0000255|HAMAP-Rule:MF_01363};
GN   Synonyms=rpl21 {ECO:0000255|HAMAP-Rule:MF_01363};
GN   OrderedLocusNames=SYNW0547;
OS   Parasynechococcus marenigrum (strain WH8102).
OC   Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC   Parasynechococcus; Parasynechococcus marenigrum.
OX   NCBI_TaxID=84588;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=WH8102;
RX   PubMed=12917641; DOI=10.1038/nature01943;
RA   Palenik B., Brahamsha B., Larimer F.W., Land M.L., Hauser L., Chain P.,
RA   Lamerdin J.E., Regala W., Allen E.E., McCarren J., Paulsen I.T.,
RA   Dufresne A., Partensky F., Webb E.A., Waterbury J.;
RT   "The genome of a motile marine Synechococcus.";
RL   Nature 424:1037-1042(2003).
CC   -!- FUNCTION: This protein binds to 23S rRNA in the presence of protein
CC       L20. {ECO:0000255|HAMAP-Rule:MF_01363}.
CC   -!- SUBUNIT: Part of the 50S ribosomal subunit. Contacts protein L20.
CC       {ECO:0000255|HAMAP-Rule:MF_01363}.
CC   -!- SIMILARITY: Belongs to the bacterial ribosomal protein bL21 family.
CC       {ECO:0000255|HAMAP-Rule:MF_01363}.
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DR   EMBL; BX569690; CAE07062.1; -; Genomic_DNA.
DR   RefSeq; WP_011127416.1; NC_005070.1.
DR   AlphaFoldDB; Q7U8R6; -.
DR   SMR; Q7U8R6; -.
DR   STRING; 84588.SYNW0547; -.
DR   EnsemblBacteria; CAE07062; CAE07062; SYNW0547.
DR   KEGG; syw:SYNW0547; -.
DR   eggNOG; COG0261; Bacteria.
DR   HOGENOM; CLU_061463_6_0_3; -.
DR   OMA; HRQEITR; -.
DR   OrthoDB; 1949059at2; -.
DR   Proteomes; UP000001422; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProt.
DR   GO; GO:0005840; C:ribosome; IEA:UniProtKB-KW.
DR   GO; GO:0019843; F:rRNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0003735; F:structural constituent of ribosome; IEA:InterPro.
DR   GO; GO:0006412; P:translation; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_01363; Ribosomal_L21; 1.
DR   InterPro; IPR036164; L21-like_sf.
DR   InterPro; IPR028909; L21p-like.
DR   InterPro; IPR001787; Ribosomal_L21.
DR   InterPro; IPR018258; Ribosomal_L21_CS.
DR   PANTHER; PTHR21349; PTHR21349; 1.
DR   Pfam; PF00829; Ribosomal_L21p; 1.
DR   SUPFAM; SSF141091; SSF141091; 1.
DR   TIGRFAMs; TIGR00061; L21; 1.
DR   PROSITE; PS01169; RIBOSOMAL_L21; 1.
PE   3: Inferred from homology;
KW   Ribonucleoprotein; Ribosomal protein; RNA-binding; rRNA-binding.
FT   CHAIN           1..137
FT                   /note="50S ribosomal protein L21"
FT                   /id="PRO_0000269412"
FT   REGION          1..26
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   137 AA;  15026 MW;  0C8D58CADE763B77 CRC64;
     MADTKTATPA TDAEEATATP PAAAPSSEAY AIVEASGTQM WVQANRYYDV DRLHAEVDET
     IKLENVLMVK DSKGTTLGQP FVKDATVALK VMAHRRGPKV IVYKMRPKKK TRRKNGHRQE
     LTRVMVESIT VGGKAIS