ID   RS21_PROM9              Reviewed;          58 AA.
AC   Q31AP2;
DT   12-DEC-2006, integrated into UniProtKB/Swiss-Prot.
DT   12-DEC-2006, sequence version 2.
DT   25-MAY-2022, entry version 84.
DE   RecName: Full=30S ribosomal protein S21 {ECO:0000255|HAMAP-Rule:MF_00358};
GN   Name=rpsU {ECO:0000255|HAMAP-Rule:MF_00358};
GN   Synonyms=rps21 {ECO:0000255|HAMAP-Rule:MF_00358};
GN   OrderedLocusNames=PMT9312_0993;
OS   Prochlorococcus marinus (strain MIT 9312).
OC   Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC   Prochlorococcus.
OX   NCBI_TaxID=74546;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MIT 9312;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA   Hammon N., Israni S., Pitluck S., Thiel J., Schmutz J., Larimer F.,
RA   Land M., Kyrpides N., Lykidis A., Richardson P.;
RT   "Complete sequence of Prochlorococcus marinus str. MIT 9312.";
RL   Submitted (JUL-2005) to the EMBL/GenBank/DDBJ databases.
CC   -!- SIMILARITY: Belongs to the bacterial ribosomal protein bS21 family.
CC       {ECO:0000255|HAMAP-Rule:MF_00358}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=ABB50053.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; CP000111; ABB50053.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_002806486.1; NC_007577.1.
DR   AlphaFoldDB; Q31AP2; -.
DR   SMR; Q31AP2; -.
DR   STRING; 74546.PMT9312_0993; -.
DR   EnsemblBacteria; ABB50053; ABB50053; PMT9312_0993.
DR   KEGG; pmi:PMT9312_0993; -.
DR   eggNOG; COG0828; Bacteria.
DR   HOGENOM; CLU_159258_3_1_3; -.
DR   OMA; HRHFETN; -.
DR   OrthoDB; 2088764at2; -.
DR   Proteomes; UP000002715; 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   Ribonucleoprotein; Ribosomal protein.
FT   CHAIN           1..58
FT                   /note="30S ribosomal protein S21"
FT                   /id="PRO_0000266728"
SQ   SEQUENCE   58 AA;  7019 MW;  E013D3A296FD7D99 CRC64;
     MTQVTVGENE GIESALRRFK RQVSKSGIFA DLKRLRHHET PIEKYKRKLQ QRRKARRR