ID   RS21_STRT2              Reviewed;          58 AA.
AC   Q5M3E1;
DT   12-DEC-2006, integrated into UniProtKB/Swiss-Prot.
DT   12-DEC-2006, sequence version 2.
DT   25-MAY-2022, entry version 89.
DE   RecName: Full=30S ribosomal protein S21 {ECO:0000255|HAMAP-Rule:MF_00358};
GN   Name=rpsU {ECO:0000255|HAMAP-Rule:MF_00358}; OrderedLocusNames=stu1490;
OS   Streptococcus thermophilus (strain ATCC BAA-250 / LMG 18311).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Streptococcus.
OX   NCBI_TaxID=264199;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-250 / LMG 18311;
RX   PubMed=15543133; DOI=10.1038/nbt1034;
RA   Bolotin A., Quinquis B., Renault P., Sorokin A., Ehrlich S.D.,
RA   Kulakauskas S., Lapidus A., Goltsman E., Mazur M., Pusch G.D., Fonstein M.,
RA   Overbeek R., Kyprides N., Purnelle B., Prozzi D., Ngui K., Masuy D.,
RA   Hancy F., Burteau S., Boutry M., Delcour J., Goffeau A., Hols P.;
RT   "Complete sequence and comparative genome analysis of the dairy bacterium
RT   Streptococcus thermophilus.";
RL   Nat. Biotechnol. 22:1554-1558(2004).
CC   -!- SIMILARITY: Belongs to the bacterial ribosomal protein bS21 family.
CC       {ECO:0000255|HAMAP-Rule:MF_00358}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=AAV61094.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; CP000023; AAV61094.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_011226340.1; NC_006448.1.
DR   AlphaFoldDB; Q5M3E1; -.
DR   SMR; Q5M3E1; -.
DR   STRING; 264199.stu1490; -.
DR   DNASU; 3165607; -.
DR   EnsemblBacteria; AAV61094; AAV61094; stu1490.
DR   GeneID; 66899238; -.
DR   KEGG; stl:stu1490; -.
DR   eggNOG; COG0828; Bacteria.
DR   HOGENOM; CLU_159258_3_2_9; -.
DR   Proteomes; UP000001170; 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"
FT                   /id="PRO_0000266782"
FT   REGION          24..58
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        27..46
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   58 AA;  6924 MW;  454E67E9B46E8D98 CRC64;
     MSKIVVRKNE SLDDALRRFK RSVTKAGTLQ EARKREHYEK PSVKRKRKSE AARKRKKI