ID   RL21_ALBFT              Reviewed;         103 AA.
AC   Q21Z01;
DT   09-JAN-2007, integrated into UniProtKB/Swiss-Prot.
DT   09-JAN-2007, sequence version 2.
DT   03-AUG-2022, entry version 75.
DE   RecName: Full=50S ribosomal protein L21 {ECO:0000255|HAMAP-Rule:MF_01363};
GN   Name=rplU {ECO:0000255|HAMAP-Rule:MF_01363}; OrderedLocusNames=Rfer_1268;
OS   Albidiferax ferrireducens (strain ATCC BAA-621 / DSM 15236 / T118)
OS   (Rhodoferax ferrireducens).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC   Comamonadaceae; Rhodoferax.
OX   NCBI_TaxID=338969;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-621 / DSM 15236 / T118;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Hammon N., Israni S., Pitluck S., Brettin T., Bruce D.,
RA   Han C., Tapia R., Gilna P., Kiss H., Schmutz J., Larimer F., Land M.,
RA   Kyrpides N., Ivanova N., Richardson P.;
RT   "Complete sequence of chromosome of Rhodoferax ferrireducens DSM 15236.";
RL   Submitted (FEB-2006) 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}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=ABD69002.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; CP000267; ABD69002.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_041790293.1; NC_007908.1.
DR   AlphaFoldDB; Q21Z01; -.
DR   SMR; Q21Z01; -.
DR   STRING; 338969.Rfer_1268; -.
DR   EnsemblBacteria; ABD69002; ABD69002; Rfer_1268.
DR   KEGG; rfr:Rfer_1268; -.
DR   eggNOG; COG0261; Bacteria.
DR   HOGENOM; CLU_061463_3_1_4; -.
DR   OrthoDB; 1949059at2; -.
DR   Proteomes; UP000008332; 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..103
FT                   /note="50S ribosomal protein L21"
FT                   /id="PRO_0000270722"
SQ   SEQUENCE   103 AA;  11272 MW;  06793EEE376A92CC CRC64;
     MYAVIKTGGK QYRVAAGEKI KVEQIAADVG QEIVFNEVLA VGNGAELKVG TPLVSGATVS
     VTVLAHGKHD KVSIFKMRRR KHYQKRQGHR QQFTELLVNT IAG