ID   RS21B_NOSS1             Reviewed;          58 AA.
AC   Q8YYK5;
DT   15-MAY-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2002, sequence version 1.
DT   25-MAY-2022, entry version 90.
DE   RecName: Full=30S ribosomal protein S21 B;
GN   Name=rpsU2; Synonyms=rps21; OrderedLocusNames=asr0843;
OS   Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576).
OC   Bacteria; Cyanobacteria; Nostocales; Nostocaceae; Nostoc.
OX   NCBI_TaxID=103690;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PCC 7120 / SAG 25.82 / UTEX 2576;
RX   PubMed=11759840; DOI=10.1093/dnares/8.5.205;
RA   Kaneko T., Nakamura Y., Wolk C.P., Kuritz T., Sasamoto S., Watanabe A.,
RA   Iriguchi M., Ishikawa A., Kawashima K., Kimura T., Kishida Y., Kohara M.,
RA   Matsumoto M., Matsuno A., Muraki A., Nakazaki N., Shimpo S., Sugimoto M.,
RA   Takazawa M., Yamada M., Yasuda M., Tabata S.;
RT   "Complete genomic sequence of the filamentous nitrogen-fixing
RT   cyanobacterium Anabaena sp. strain PCC 7120.";
RL   DNA Res. 8:205-213(2001).
CC   -!- SIMILARITY: Belongs to the bacterial ribosomal protein bS21 family.
CC       {ECO:0000305}.
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DR   EMBL; BA000019; BAB72800.1; -; Genomic_DNA.
DR   PIR; AI1911; AI1911.
DR   RefSeq; WP_010995017.1; NZ_RSCN01000006.1.
DR   AlphaFoldDB; Q8YYK5; -.
DR   SMR; Q8YYK5; -.
DR   STRING; 103690.17130188; -.
DR   EnsemblBacteria; BAB72800; BAB72800; BAB72800.
DR   KEGG; ana:asr0843; -.
DR   eggNOG; COG0828; Bacteria.
DR   OMA; RFHETPI; -.
DR   OrthoDB; 2088764at2; -.
DR   Proteomes; UP000002483; Chromosome.
DR   GO; GO:0005840; C:ribosome; IEA:UniProtKB-KW.
DR   GO; GO:0003735; F:structural constituent of ribosome; IEA:InterPro.
DR   GO; GO:0006412; P:translation; IEA:UniProtKB-UniRule.
DR   Gene3D; 1.20.5.1150; -; 1.
DR   HAMAP; MF_00358; Ribosomal_S21; 1.
DR   InterPro; IPR001911; Ribosomal_S21.
DR   InterPro; IPR018278; Ribosomal_S21_CS.
DR   InterPro; IPR038380; S21_sf.
DR   PANTHER; PTHR21109; PTHR21109; 1.
DR   Pfam; PF01165; Ribosomal_S21; 1.
DR   PRINTS; PR00976; RIBOSOMALS21.
DR   TIGRFAMs; TIGR00030; S21p; 1.
DR   PROSITE; PS01181; RIBOSOMAL_S21; 1.
PE   3: Inferred from homology;
KW   Reference proteome; Ribonucleoprotein; Ribosomal protein.
FT   CHAIN           1..58
FT                   /note="30S ribosomal protein S21 B"
FT                   /id="PRO_0000178288"
SQ   SEQUENCE   58 AA;  6901 MW;  5BD5B2B6A93A9B4D CRC64;
     MTQVVLGEHE GIDSALRRFK RQVSKAGILA DVKYHRHFET PLERRKRKAV AARRKRRF