ID   RS4_NOSS1               Reviewed;         202 AA.
AC   Q8YTI0;
DT   06-DEC-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2002, sequence version 1.
DT   25-MAY-2022, entry version 99.
DE   RecName: Full=30S ribosomal protein S4 {ECO:0000255|HAMAP-Rule:MF_01306};
GN   Name=rpsD {ECO:0000255|HAMAP-Rule:MF_01306};
GN   Synonyms=rps4 {ECO:0000255|HAMAP-Rule:MF_01306}; OrderedLocusNames=alr2737;
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   -!- FUNCTION: One of the primary rRNA binding proteins, it binds directly
CC       to 16S rRNA where it nucleates assembly of the body of the 30S subunit.
CC       {ECO:0000255|HAMAP-Rule:MF_01306}.
CC   -!- FUNCTION: With S5 and S12 plays an important role in translational
CC       accuracy. {ECO:0000255|HAMAP-Rule:MF_01306}.
CC   -!- SUBUNIT: Part of the 30S ribosomal subunit. Contacts protein S5. The
CC       interaction surface between S4 and S5 is involved in control of
CC       translational fidelity. {ECO:0000255|HAMAP-Rule:MF_01306}.
CC   -!- SIMILARITY: Belongs to the universal ribosomal protein uS4 family.
CC       {ECO:0000255|HAMAP-Rule:MF_01306}.
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DR   EMBL; BA000019; BAB74436.1; -; Genomic_DNA.
DR   PIR; AB2148; AB2148.
DR   RefSeq; WP_010996890.1; NZ_RSCN01000030.1.
DR   AlphaFoldDB; Q8YTI0; -.
DR   SMR; Q8YTI0; -.
DR   STRING; 103690.17131830; -.
DR   EnsemblBacteria; BAB74436; BAB74436; BAB74436.
DR   KEGG; ana:alr2737; -.
DR   eggNOG; COG0522; Bacteria.
DR   OMA; NVVFRMG; -.
DR   OrthoDB; 1211060at2; -.
DR   Proteomes; UP000002483; Chromosome.
DR   GO; GO:0015935; C:small ribosomal subunit; IEA:InterPro.
DR   GO; GO:0019843; F:rRNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0003735; F:structural constituent of ribosome; IEA:InterPro.
DR   GO; GO:0006412; P:translation; IEA:UniProtKB-UniRule.
DR   CDD; cd00165; S4; 1.
DR   Gene3D; 3.10.290.10; -; 1.
DR   HAMAP; MF_01306_B; Ribosomal_S4_B; 1.
DR   InterPro; IPR022801; Ribosomal_S4/S9.
DR   InterPro; IPR001912; Ribosomal_S4/S9_N.
DR   InterPro; IPR005709; Ribosomal_S4_bac-type.
DR   InterPro; IPR018079; Ribosomal_S4_CS.
DR   InterPro; IPR002942; S4_RNA-bd.
DR   InterPro; IPR036986; S4_RNA-bd_sf.
DR   PANTHER; PTHR11831; PTHR11831; 1.
DR   Pfam; PF00163; Ribosomal_S4; 1.
DR   Pfam; PF01479; S4; 1.
DR   SMART; SM01390; Ribosomal_S4; 1.
DR   SMART; SM00363; S4; 1.
DR   TIGRFAMs; TIGR01017; rpsD_bact; 1.
DR   PROSITE; PS00632; RIBOSOMAL_S4; 1.
DR   PROSITE; PS50889; S4; 1.
PE   3: Inferred from homology;
KW   Reference proteome; Ribonucleoprotein; Ribosomal protein; RNA-binding;
KW   rRNA-binding.
FT   CHAIN           1..202
FT                   /note="30S ribosomal protein S4"
FT                   /id="PRO_0000132328"
FT   DOMAIN          90..152
FT                   /note="S4 RNA-binding"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01306"
FT   REGION          22..43
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   202 AA;  23247 MW;  E87CC650A4447229 CRC64;
     MSRYRGPRLR IVRRLGDLPG LTRKSARRAY PPGQHGQNRK KRSEYAIRLE EKQKLRLNYG
     LTEKQLLRYV RRARRVTGST GQVLLQLLEM RLDNTVFRLG MAPTIPAARQ LVNHGHVTVN
     GRVVNIASYQ CRPGEEIAVR DKAPSRKLVE NNLQYPGLAN LPSHLEFDKN KLVGKVNSVI
     EREWVALQVN ELLVVEYYSR QA