ID   RS21_BUCAI              Reviewed;          71 AA.
AC   P57165;
DT   01-DEC-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-DEC-2000, sequence version 1.
DT   25-MAY-2022, entry version 89.
DE   RecName: Full=30S ribosomal protein S21;
GN   Name=rpsU; OrderedLocusNames=BU057;
OS   Buchnera aphidicola subsp. Acyrthosiphon pisum (strain APS) (Acyrthosiphon
OS   pisum symbiotic bacterium).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Buchnera.
OX   NCBI_TaxID=107806;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=APS;
RX   PubMed=10993077; DOI=10.1038/35024074;
RA   Shigenobu S., Watanabe H., Hattori M., Sakaki Y., Ishikawa H.;
RT   "Genome sequence of the endocellular bacterial symbiont of aphids Buchnera
RT   sp. APS.";
RL   Nature 407:81-86(2000).
CC   -!- SIMILARITY: Belongs to the bacterial ribosomal protein bS21 family.
CC       {ECO:0000305}.
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DR   EMBL; BA000003; BAB12780.1; -; Genomic_DNA.
DR   RefSeq; NP_239894.1; NC_002528.1.
DR   RefSeq; WP_009874014.1; NC_002528.1.
DR   AlphaFoldDB; P57165; -.
DR   SMR; P57165; -.
DR   STRING; 107806.10038745; -.
DR   EnsemblBacteria; BAB12780; BAB12780; BAB12780.
DR   KEGG; buc:BU057; -.
DR   PATRIC; fig|107806.10.peg.66; -.
DR   eggNOG; COG0828; Bacteria.
DR   HOGENOM; CLU_159258_1_0_6; -.
DR   OMA; FKRSCQK; -.
DR   Proteomes; UP000001806; 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..71
FT                   /note="30S ribosomal protein S21"
FT                   /id="PRO_0000178312"
SQ   SEQUENCE   71 AA;  8578 MW;  8C2892823192F581 CRC64;
     MPIIKVRENE PFDVALRRFK RSCEKAGILA EIRRREFYEK PTTERKRAKA SAVKRLAKKL
     TRENARRIRM Y