ID   RL21_SALRD              Reviewed;         135 AA.
AC   Q2S2N7;
DT   09-JAN-2007, integrated into UniProtKB/Swiss-Prot.
DT   09-JAN-2007, sequence version 2.
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=SRU_1420;
OS   Salinibacter ruber (strain DSM 13855 / M31).
OC   Bacteria; Bacteroidetes; Bacteroidetes Order II. Incertae sedis;
OC   Rhodothermaceae; Salinibacter.
OX   NCBI_TaxID=309807;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 13855 / CECT 5946 / M31;
RX   PubMed=16330755; DOI=10.1073/pnas.0509073102;
RA   Mongodin E.F., Nelson K.E., Daugherty S., DeBoy R.T., Wister J., Khouri H.,
RA   Weidman J., Walsh D.A., Papke R.T., Sanchez Perez G., Sharma A.K.,
RA   Nesbo C.L., MacLeod D., Bapteste E., Doolittle W.F., Charlebois R.L.,
RA   Legault B., Rodriguez-Valera F.;
RT   "The genome of Salinibacter ruber: convergence and gene exchange among
RT   hyperhalophilic bacteria and archaea.";
RL   Proc. Natl. Acad. Sci. U.S.A. 102:18147-18152(2005).
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=ABC43682.1; Type=Erroneous initiation; Evidence={ECO:0000305};
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; CP000159; ABC43682.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; YP_445544.1; NC_007677.1.
DR   AlphaFoldDB; Q2S2N7; -.
DR   SMR; Q2S2N7; -.
DR   STRING; 309807.SRU_1420; -.
DR   EnsemblBacteria; ABC43682; ABC43682; SRU_1420.
DR   KEGG; sru:SRU_1420; -.
DR   PATRIC; fig|309807.25.peg.1475; -.
DR   eggNOG; COG0261; Bacteria.
DR   HOGENOM; CLU_061463_1_2_10; -.
DR   Proteomes; UP000008674; 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..135
FT                   /note="50S ribosomal protein L21"
FT                   /id="PRO_0000270734"
FT   REGION          85..135
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        114..135
FT                   /note="Acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   135 AA;  14933 MW;  D19077F3BA8F1BAB CRC64;
     MYAVVDVKDK QFKVQEGDTL YVPYHSDATA GQELTLDRVL LVSDGDGDVT LGTPTVEDAT
     ATARVLEHVK GDKVIVFKKK RRKRYRVKRG HRQQYTQIEI ESLNANGPAS SDDEEAAETS
     DAEPDEDPEA EPAEA