ID   RL21_AYWBP              Reviewed;         102 AA.
AC   Q2NIJ7;
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=AYWB_629;
OS   Aster yellows witches'-broom phytoplasma (strain AYWB).
OC   Bacteria; Tenericutes; Mollicutes; Acholeplasmatales; Acholeplasmataceae;
OC   Candidatus Phytoplasma; Candidatus Phytoplasma asteris.
OX   NCBI_TaxID=322098;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=AYWB;
RX   PubMed=16672622; DOI=10.1128/jb.188.10.3682-3696.2006;
RA   Bai X., Zhang J., Ewing A., Miller S.A., Jancso Radek A., Shevchenko D.V.,
RA   Tsukerman K., Walunas T., Lapidus A., Campbell J.W., Hogenhout S.A.;
RT   "Living with genome instability: the adaptation of phytoplasmas to diverse
RT   environments of their insect and plant hosts.";
RL   J. Bacteriol. 188:3682-3696(2006).
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=ABC65746.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; CP000061; ABC65746.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_011412907.1; NC_007716.1.
DR   AlphaFoldDB; Q2NIJ7; -.
DR   SMR; Q2NIJ7; -.
DR   STRING; 322098.AYWB_629; -.
DR   EnsemblBacteria; ABC65746; ABC65746; AYWB_629.
DR   KEGG; ayw:AYWB_629; -.
DR   eggNOG; COG0261; Bacteria.
DR   HOGENOM; CLU_061463_3_2_14; -.
DR   OrthoDB; 1949059at2; -.
DR   Proteomes; UP000001934; 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   Ribonucleoprotein; Ribosomal protein; RNA-binding; rRNA-binding.
FT   CHAIN           1..102
FT                   /note="50S ribosomal protein L21"
FT                   /id="PRO_0000270633"
SQ   SEQUENCE   102 AA;  11716 MW;  D647BB5053358976 CRC64;
     MFAIIKTGGK QFRVSEGQEI YVEKLNVEPE TTYQFQEVLA VGGSNPVLGV PFVKDAKVTA
     QVIKHDRAKK IIVFKYKKRK KYRCKQGHRQ SYTKLLITKI TV