ID   RS4_PROMM               Reviewed;         202 AA.
AC   Q7V8U9;
DT   16-JAN-2004, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2003, sequence version 1.
DT   25-MAY-2022, entry version 98.
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};
GN   OrderedLocusNames=PMT_0227;
OS   Prochlorococcus marinus (strain MIT 9313).
OC   Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC   Prochlorococcus.
OX   NCBI_TaxID=74547;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MIT 9313;
RX   PubMed=12917642; DOI=10.1038/nature01947;
RA   Rocap G., Larimer F.W., Lamerdin J.E., Malfatti S., Chain P., Ahlgren N.A.,
RA   Arellano A., Coleman M., Hauser L., Hess W.R., Johnson Z.I., Land M.L.,
RA   Lindell D., Post A.F., Regala W., Shah M., Shaw S.L., Steglich C.,
RA   Sullivan M.B., Ting C.S., Tolonen A., Webb E.A., Zinser E.R.,
RA   Chisholm S.W.;
RT   "Genome divergence in two Prochlorococcus ecotypes reflects oceanic niche
RT   differentiation.";
RL   Nature 424:1042-1047(2003).
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; BX548175; CAE20402.1; -; Genomic_DNA.
DR   RefSeq; WP_011129606.1; NC_005071.1.
DR   AlphaFoldDB; Q7V8U9; -.
DR   SMR; Q7V8U9; -.
DR   STRING; 74547.PMT_0227; -.
DR   EnsemblBacteria; CAE20402; CAE20402; PMT_0227.
DR   KEGG; pmt:PMT_0227; -.
DR   eggNOG; COG0522; Bacteria.
DR   HOGENOM; CLU_092403_0_5_3; -.
DR   OMA; NVVFRMG; -.
DR   OrthoDB; 1211060at2; -.
DR   Proteomes; UP000001423; 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_0000132436"
FT   DOMAIN          90..152
FT                   /note="S4 RNA-binding"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01306"
FT   REGION          1..43
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   202 AA;  22939 MW;  CEFDBF33F7644F5B CRC64;
     MSRYRGPRLR ITRRLGDLPG LTRKAAKRSH PPGQHGQARR KRSEYAIRLE EKQKLRFNYG
     ISERQLVRYV KKARAQDGST GTNLLKLLEN RLDNVCFRLG FGPTVPGARQ LVNHGHVTVN
     GRVLDIASYQ CKAGDVVAIR ERKGSKKLAE ANLEFPGLAN VPPHIELDKA KMSAKIISKC
     EREWVALEIN ELLVVEYYSR KV