ID   RL21_CERS4              Reviewed;         131 AA.
AC   Q3IXY2;
DT   09-JAN-2007, integrated into UniProtKB/Swiss-Prot.
DT   08-NOV-2005, sequence version 1.
DT   03-AUG-2022, entry version 88.
DE   RecName: Full=50S ribosomal protein L21 {ECO:0000255|HAMAP-Rule:MF_01363};
GN   Name=rplU {ECO:0000255|HAMAP-Rule:MF_01363}; OrderedLocusNames=RHOS4_30340;
GN   ORFNames=RSP_3819;
OS   Cereibacter sphaeroides (strain ATCC 17023 / DSM 158 / JCM 6121 / CCUG
OS   31486 / LMG 2827 / NBRC 12203 / NCIMB 8253 / ATH 2.4.1.) (Rhodobacter
OS   sphaeroides).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhodobacterales;
OC   Rhodobacteraceae; Cereibacter.
OX   NCBI_TaxID=272943;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 17023 / DSM 158 / JCM 6121 / CCUG 31486 / LMG 2827 / NBRC 12203
RC   / NCIMB 8253 / ATH 2.4.1.;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA   Hammon N., Israni S., Pitluck S., Richardson P., Mackenzie C.,
RA   Choudhary M., Larimer F., Hauser L.J., Land M., Donohue T.J., Kaplan S.;
RT   "Complete sequence of chromosome 2 of Rhodobacter sphaeroides 2.4.1.";
RL   Submitted (SEP-2005) to the EMBL/GenBank/DDBJ databases.
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; CP000144; ABA80602.1; -; Genomic_DNA.
DR   RefSeq; WP_002723380.1; NZ_CP030272.1.
DR   RefSeq; YP_354503.1; NC_007494.2.
DR   AlphaFoldDB; Q3IXY2; -.
DR   SMR; Q3IXY2; -.
DR   STRING; 272943.RSP_3819; -.
DR   EnsemblBacteria; ABA80602; ABA80602; RSP_3819.
DR   GeneID; 67448500; -.
DR   KEGG; rsp:RSP_3819; -.
DR   PATRIC; fig|272943.9.peg.3405; -.
DR   eggNOG; COG0261; Bacteria.
DR   OMA; HRQEITR; -.
DR   PhylomeDB; Q3IXY2; -.
DR   Proteomes; UP000002703; Chromosome 2.
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   PANTHER; PTHR21349; PTHR21349; 1.
DR   Pfam; PF00829; Ribosomal_L21p; 1.
DR   SUPFAM; SSF141091; SSF141091; 1.
DR   TIGRFAMs; TIGR00061; L21; 1.
PE   3: Inferred from homology;
KW   Reference proteome; Ribonucleoprotein; Ribosomal protein; RNA-binding;
KW   rRNA-binding.
FT   CHAIN           1..131
FT                   /note="50S ribosomal protein L21"
FT                   /id="PRO_0000270720"
SQ   SEQUENCE   131 AA;  13841 MW;  51E9261D1E83D925 CRC64;
     MFAVLKTGGK QYKVQAGDVL RVEKLACEAG DKIQFNDILM VGGDSVTVGA PFVAGAAVQA
     EVIAQIKGEK TIHYVKRRRK HSSQRTKGHR QQLTLLRVTD VLASGADASG VAVATGTADA
     RRAAHNASAK E