ID   RL21_CHLTR              Reviewed;         107 AA.
AC   O84425;
DT   30-MAY-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1998, sequence version 1.
DT   03-AUG-2022, entry version 102.
DE   RecName: Full=50S ribosomal protein L21 {ECO:0000255|HAMAP-Rule:MF_01363};
GN   Name=rplU {ECO:0000255|HAMAP-Rule:MF_01363}; Synonyms=rl21;
GN   OrderedLocusNames=CT_420;
OS   Chlamydia trachomatis (strain D/UW-3/Cx).
OC   Bacteria; Chlamydiae; Chlamydiales; Chlamydiaceae;
OC   Chlamydia/Chlamydophila group; Chlamydia.
OX   NCBI_TaxID=272561;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=D/UW-3/Cx;
RX   PubMed=9784136; DOI=10.1126/science.282.5389.754;
RA   Stephens R.S., Kalman S., Lammel C.J., Fan J., Marathe R., Aravind L.,
RA   Mitchell W.P., Olinger L., Tatusov R.L., Zhao Q., Koonin E.V., Davis R.W.;
RT   "Genome sequence of an obligate intracellular pathogen of humans: Chlamydia
RT   trachomatis.";
RL   Science 282:754-759(1998).
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; AE001273; AAC68017.1; -; Genomic_DNA.
DR   PIR; G71517; G71517.
DR   RefSeq; NP_219930.1; NC_000117.1.
DR   RefSeq; WP_009871772.1; NC_000117.1.
DR   AlphaFoldDB; O84425; -.
DR   SMR; O84425; -.
DR   STRING; 813.O172_02280; -.
DR   EnsemblBacteria; AAC68017; AAC68017; CT_420.
DR   GeneID; 884693; -.
DR   KEGG; ctr:CT_420; -.
DR   PATRIC; fig|272561.5.peg.451; -.
DR   HOGENOM; CLU_061463_3_2_0; -.
DR   InParanoid; O84425; -.
DR   OMA; HRQEITR; -.
DR   Proteomes; UP000000431; 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; IBA:GO_Central.
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..107
FT                   /note="50S ribosomal protein L21"
FT                   /id="PRO_0000180997"
SQ   SEQUENCE   107 AA;  12163 MW;  49CA7037B71B39D4 CRC64;
     MEPYAVIQTG NKQYQVRKGD VIDVELLDGI SEENKEVLFQ DVLFTFDGEK ASVGAPTVGN
     AVVKGELVSF VRGEKVVAYK YKKRKNYHKK IGHRQNYLRV KISDLVM