ID   RL21_SYNAS              Reviewed;         103 AA.
AC   Q2LR75;
DT   09-JAN-2007, integrated into UniProtKB/Swiss-Prot.
DT   09-JAN-2007, sequence version 2.
DT   03-AUG-2022, entry version 76.
DE   RecName: Full=50S ribosomal protein L21 {ECO:0000255|HAMAP-Rule:MF_01363};
GN   Name=rplU {ECO:0000255|HAMAP-Rule:MF_01363}; OrderedLocusNames=SYNAS_07100;
GN   ORFNames=SYN_01353;
OS   Syntrophus aciditrophicus (strain SB).
OC   Bacteria; Proteobacteria; Deltaproteobacteria; Syntrophales; Syntrophaceae;
OC   Syntrophus.
OX   NCBI_TaxID=56780;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=SB;
RX   PubMed=17442750; DOI=10.1073/pnas.0610456104;
RA   McInerney M.J., Rohlin L., Mouttaki H., Kim U., Krupp R.S.,
RA   Rios-Hernandez L., Sieber J., Struchtemeyer C.G., Bhattacharyya A.,
RA   Campbell J.W., Gunsalus R.P.;
RT   "The genome of Syntrophus aciditrophicus: life at the thermodynamic limit
RT   of microbial growth.";
RL   Proc. Natl. Acad. Sci. U.S.A. 104:7600-7605(2007).
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=ABC76589.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; CP000252; ABC76589.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_041584674.1; NC_007759.1.
DR   AlphaFoldDB; Q2LR75; -.
DR   SMR; Q2LR75; -.
DR   STRING; 56780.SYN_01353; -.
DR   EnsemblBacteria; ABC76589; ABC76589; SYN_01353.
DR   KEGG; sat:SYN_01353; -.
DR   eggNOG; COG0261; Bacteria.
DR   HOGENOM; CLU_061463_3_2_7; -.
DR   OrthoDB; 1949059at2; -.
DR   Proteomes; UP000001933; 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   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..103
FT                   /note="50S ribosomal protein L21"
FT                   /id="PRO_0000270739"
SQ   SEQUENCE   103 AA;  11442 MW;  0D5123E4CF3A077F CRC64;
     MYAVIKTGGK QHRVSEGDLL TVEKLAGSKG DSVVFDDVLM VAKEGEIRVG KPVLEGAKVV
     GEIVAQVKGP KIYVFHMKKR KGFHKKTGHR QQLTRMRIKE ISI