ID   RS4_PROM1               Reviewed;         202 AA.
AC   A2C0L5;
DT   10-JUL-2007, integrated into UniProtKB/Swiss-Prot.
DT   20-FEB-2007, sequence version 1.
DT   25-MAY-2022, entry version 79.
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=NATL1_04611;
OS   Prochlorococcus marinus (strain NATL1A).
OC   Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC   Prochlorococcus.
OX   NCBI_TaxID=167555;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NATL1A;
RX   PubMed=18159947; DOI=10.1371/journal.pgen.0030231;
RA   Kettler G.C., Martiny A.C., Huang K., Zucker J., Coleman M.L., Rodrigue S.,
RA   Chen F., Lapidus A., Ferriera S., Johnson J., Steglich C., Church G.M.,
RA   Richardson P., Chisholm S.W.;
RT   "Patterns and implications of gene gain and loss in the evolution of
RT   Prochlorococcus.";
RL   PLoS Genet. 3:2515-2528(2007).
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; CP000553; ABM75025.1; -; Genomic_DNA.
DR   RefSeq; WP_011823212.1; NC_008819.1.
DR   AlphaFoldDB; A2C0L5; -.
DR   SMR; A2C0L5; -.
DR   STRING; 167555.NATL1_04611; -.
DR   EnsemblBacteria; ABM75025; ABM75025; NATL1_04611.
DR   KEGG; pme:NATL1_04611; -.
DR   eggNOG; COG0522; Bacteria.
DR   HOGENOM; CLU_092403_0_5_3; -.
DR   OMA; NVVFRMG; -.
DR   Proteomes; UP000002592; 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   Ribonucleoprotein; Ribosomal protein; RNA-binding; rRNA-binding.
FT   CHAIN           1..202
FT                   /note="30S ribosomal protein S4"
FT                   /id="PRO_0000293339"
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;  22895 MW;  EBEB628D8D410865 CRC64;
     MSRYRGPRLR ITRRLGDLPG LTRKAAKRSH PPGQHGQARR KRSEYAIRLE EKQKLRFNYG
     ISERQLVRYV KKARAQEGST GTNLLKLLEN RLDNVCFRLG FGPTIPGSRQ LVNHGHVTVN
     GKITDIASYQ CKAGDVIAIR DNKASKQLAQ ANLEFPGLAN VPPHLELDKT KLSAKITAKT
     DREWVAIEIN ELLVVEYYSR KV