ID   RL21_MYCTU              Reviewed;         103 AA.
AC   P9WHC3; L0T9M8; P66117; P71907;
DT   16-APR-2014, integrated into UniProtKB/Swiss-Prot.
DT   16-APR-2014, sequence version 1.
DT   03-AUG-2022, entry version 50.
DE   RecName: Full=50S ribosomal protein L21 {ECO:0000255|HAMAP-Rule:MF_01363};
GN   Name=rplU {ECO:0000255|HAMAP-Rule:MF_01363}; OrderedLocusNames=Rv2442c;
GN   ORFNames=MTCY428.04;
OS   Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv).
OC   Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC   Mycobacterium; Mycobacterium tuberculosis complex.
OX   NCBI_TaxID=83332;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 25618 / H37Rv;
RX   PubMed=9634230; DOI=10.1038/31159;
RA   Cole S.T., Brosch R., Parkhill J., Garnier T., Churcher C.M., Harris D.E.,
RA   Gordon S.V., Eiglmeier K., Gas S., Barry C.E. III, Tekaia F., Badcock K.,
RA   Basham D., Brown D., Chillingworth T., Connor R., Davies R.M., Devlin K.,
RA   Feltwell T., Gentles S., Hamlin N., Holroyd S., Hornsby T., Jagels K.,
RA   Krogh A., McLean J., Moule S., Murphy L.D., Oliver S., Osborne J.,
RA   Quail M.A., Rajandream M.A., Rogers J., Rutter S., Seeger K., Skelton S.,
RA   Squares S., Squares R., Sulston J.E., Taylor K., Whitehead S.,
RA   Barrell B.G.;
RT   "Deciphering the biology of Mycobacterium tuberculosis from the complete
RT   genome sequence.";
RL   Nature 393:537-544(1998).
RN   [2]
RP   IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RC   STRAIN=ATCC 25618 / H37Rv;
RX   PubMed=21969609; DOI=10.1074/mcp.m111.011627;
RA   Kelkar D.S., Kumar D., Kumar P., Balakrishnan L., Muthusamy B., Yadav A.K.,
RA   Shrivastava P., Marimuthu A., Anand S., Sundaram H., Kingsbury R.,
RA   Harsha H.C., Nair B., Prasad T.S., Chauhan D.S., Katoch K., Katoch V.M.,
RA   Kumar P., Chaerkady R., Ramachandran S., Dash D., Pandey A.;
RT   "Proteogenomic analysis of Mycobacterium tuberculosis by high resolution
RT   mass spectrometry.";
RL   Mol. Cell. Proteomics 10:M111.011627-M111.011627(2011).
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=CCP45235.1; Type=Erroneous initiation; Note=Extended N-terminus.; Evidence={ECO:0000305};
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DR   EMBL; AL123456; CCP45235.1; ALT_INIT; Genomic_DNA.
DR   PIR; H70680; H70680.
DR   RefSeq; NP_216958.1; NC_000962.3.
DR   RefSeq; WP_003910911.1; NZ_NVQJ01000024.1.
DR   PDB; 5V7Q; EM; 3.70 A; R=1-103.
DR   PDB; 7KGB; EM; 2.70 A; R=1-103.
DR   PDB; 7MSC; EM; 2.97 A; R=1-103.
DR   PDB; 7MSH; EM; 3.23 A; R=1-103.
DR   PDB; 7MSM; EM; 2.79 A; R=1-103.
DR   PDB; 7MSZ; EM; 3.10 A; R=1-103.
DR   PDB; 7MT2; EM; 2.76 A; R=1-103.
DR   PDB; 7MT3; EM; 2.80 A; R=1-103.
DR   PDB; 7MT7; EM; 2.71 A; R=1-103.
DR   PDBsum; 5V7Q; -.
DR   PDBsum; 7KGB; -.
DR   PDBsum; 7MSC; -.
DR   PDBsum; 7MSH; -.
DR   PDBsum; 7MSM; -.
DR   PDBsum; 7MSZ; -.
DR   PDBsum; 7MT2; -.
DR   PDBsum; 7MT3; -.
DR   PDBsum; 7MT7; -.
DR   AlphaFoldDB; P9WHC3; -.
DR   SMR; P9WHC3; -.
DR   STRING; 83332.Rv2442c; -.
DR   PaxDb; P9WHC3; -.
DR   GeneID; 885715; -.
DR   KEGG; mtu:Rv2442c; -.
DR   PATRIC; fig|83332.12.peg.2738; -.
DR   TubercuList; Rv2442c; -.
DR   eggNOG; COG0261; Bacteria.
DR   OMA; HRQEITR; -.
DR   PRO; PR:P9WHC3; -.
DR   Proteomes; UP000001584; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProt.
DR   GO; GO:0005886; C:plasma membrane; HDA:MTBBASE.
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   1: Evidence at protein level;
KW   3D-structure; Reference proteome; Ribonucleoprotein; Ribosomal protein;
KW   RNA-binding; rRNA-binding.
FT   CHAIN           1..103
FT                   /note="50S ribosomal protein L21"
FT                   /id="PRO_0000181010"
SQ   SEQUENCE   103 AA;  11020 MW;  3E9E45AD44402E6A CRC64;
     MATYAIVKTG GKQYKVAVGD VVKVEKLESE QGEKVSLPVA LVVDGATVTT DAKALAKVAV
     TGEVLGHTKG PKIRIHKFKN KTGYHKRQGH RQQLTVLKVT GIA