ID   RS21_ALKCK              Reviewed;          57 AA.
AC   Q5WHF1;
DT   15-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT   23-NOV-2004, sequence version 1.
DT   25-MAY-2022, entry version 82.
DE   RecName: Full=30S ribosomal protein S21 {ECO:0000255|HAMAP-Rule:MF_00358};
GN   Name=rpsU {ECO:0000255|HAMAP-Rule:MF_00358}; OrderedLocusNames=ABC1669;
OS   Alkalihalobacillus clausii (strain KSM-K16) (Bacillus clausii).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Alkalihalobacillus.
OX   NCBI_TaxID=66692;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=KSM-K16;
RA   Takaki Y., Kageyama Y., Shimamura S., Suzuki H., Nishi S., Hatada Y.,
RA   Kawai S., Ito S., Horikoshi K.;
RT   "The complete genome sequence of the alkaliphilic Bacillus clausii KSM-
RT   K16.";
RL   Submitted (OCT-2003) to the EMBL/GenBank/DDBJ databases.
CC   -!- SIMILARITY: Belongs to the bacterial ribosomal protein bS21 family.
CC       {ECO:0000255|HAMAP-Rule:MF_00358}.
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DR   EMBL; AP006627; BAD64204.1; -; Genomic_DNA.
DR   RefSeq; WP_011246513.1; NC_006582.1.
DR   AlphaFoldDB; Q5WHF1; -.
DR   SMR; Q5WHF1; -.
DR   STRING; 66692.ABC1669; -.
DR   EnsemblBacteria; BAD64204; BAD64204; ABC1669.
DR   GeneID; 61574823; -.
DR   KEGG; bcl:ABC1669; -.
DR   eggNOG; COG0828; Bacteria.
DR   HOGENOM; CLU_159258_3_2_9; -.
DR   OMA; FKRSCQK; -.
DR   OrthoDB; 2088764at2; -.
DR   Proteomes; UP000001168; 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..57
FT                   /note="30S ribosomal protein S21"
FT                   /id="PRO_0000178299"
FT   REGION          32..57
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        38..57
FT                   /note="Basic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   57 AA;  6800 MW;  2E4C1E054BFD2C1E CRC64;
     MAETRVRKNE SIDAALRRFK RSLSKEGTLA EVRKRKHFEK PSVKRKKKSE AARKRKF