ID   RL21_BIFLO              Reviewed;         102 AA.
AC   Q8G4U2;
DT   09-JAN-2007, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2003, sequence version 1.
DT   03-AUG-2022, entry version 89.
DE   RecName: Full=50S ribosomal protein L21 {ECO:0000255|HAMAP-Rule:MF_01363};
GN   Name=rplU {ECO:0000255|HAMAP-Rule:MF_01363}; OrderedLocusNames=BL1282;
OS   Bifidobacterium longum (strain NCC 2705).
OC   Bacteria; Actinobacteria; Bifidobacteriales; Bifidobacteriaceae;
OC   Bifidobacterium.
OX   NCBI_TaxID=206672;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NCC 2705;
RX   PubMed=12381787; DOI=10.1073/pnas.212527599;
RA   Schell M.A., Karmirantzou M., Snel B., Vilanova D., Berger B., Pessi G.,
RA   Zwahlen M.-C., Desiere F., Bork P., Delley M., Pridmore R.D., Arigoni F.;
RT   "The genome sequence of Bifidobacterium longum reflects its adaptation to
RT   the human gastrointestinal tract.";
RL   Proc. Natl. Acad. Sci. U.S.A. 99:14422-14427(2002).
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; AE014295; AAN25083.1; -; Genomic_DNA.
DR   RefSeq; NP_696447.1; NC_004307.2.
DR   RefSeq; WP_007053062.1; NC_004307.2.
DR   AlphaFoldDB; Q8G4U2; -.
DR   SMR; Q8G4U2; -.
DR   STRING; 206672.BL1282; -.
DR   EnsemblBacteria; AAN25083; AAN25083; BL1282.
DR   GeneID; 66506008; -.
DR   KEGG; blo:BL1282; -.
DR   PATRIC; fig|206672.9.peg.1569; -.
DR   HOGENOM; CLU_061463_3_0_11; -.
DR   OMA; HRQEITR; -.
DR   PhylomeDB; Q8G4U2; -.
DR   Proteomes; UP000000439; 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   Reference proteome; Ribonucleoprotein; Ribosomal protein; RNA-binding;
KW   rRNA-binding.
FT   CHAIN           1..102
FT                   /note="50S ribosomal protein L21"
FT                   /id="PRO_0000270640"
SQ   SEQUENCE   102 AA;  10950 MW;  26C649ECE5427ED9 CRC64;
     MYAIVKAGGH QEKVEVGDVI LVNRLDAKKG DTVEFPVSLV VDGDKVTLAA ADLAKVSVKA
     EVVNDEAKGP KISIQKYKNK TGVARRKGHR QKLTIVKITA IA