ID   RR4_TRICV               Reviewed;         206 AA.
AC   P49492;
DT   01-FEB-1996, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1996, sequence version 1.
DT   25-MAY-2022, entry version 87.
DE   RecName: Full=30S ribosomal protein S4, chloroplastic;
GN   Name=rps4;
OS   Trieres chinensis (Marine centric diatom) (Odontella sinensis).
OG   Plastid; Chloroplast.
OC   Eukaryota; Sar; Stramenopiles; Ochrophyta; Bacillariophyta; Mediophyceae;
OC   Biddulphiophycidae; Eupodiscales; Parodontellaceae; Trieres.
OX   NCBI_TaxID=1514140;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RA   Kowallik K.V., Stoebe B., Schaffran I., Kroth-Pancic P., Freier U.;
RT   "The chloroplast genome of a chlorophyll a+c-containing alga, Odontella
RT   sinensis.";
RL   Plant Mol. Biol. Rep. 13:336-342(1995).
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:0000250}.
CC   -!- FUNCTION: With S5 and S12 plays an important role in translational
CC       accuracy. {ECO:0000250}.
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 (By similarity). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast.
CC   -!- SIMILARITY: Belongs to the universal ribosomal protein uS4 family.
CC       {ECO:0000305}.
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DR   EMBL; Z67753; CAA91654.1; -; Genomic_DNA.
DR   PIR; S78281; S78281.
DR   AlphaFoldDB; P49492; -.
DR   SMR; P49492; -.
DR   GO; GO:0009507; C:chloroplast; IEA:UniProtKB-SubCell.
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   Chloroplast; Plastid; Ribonucleoprotein; Ribosomal protein; RNA-binding;
KW   rRNA-binding.
FT   CHAIN           1..206
FT                   /note="30S ribosomal protein S4, chloroplastic"
FT                   /id="PRO_0000132638"
FT   DOMAIN          95..157
FT                   /note="S4 RNA-binding"
FT   REGION          1..50
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        33..50
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   206 AA;  23557 MW;  F67C0B3FD35969FA CRC64;
     MSRYRGPKLR ITRRLGALPG LTQKQSKKKG RPGQHGKSNE ADNSKKTTEY GIRLEEKQKL
     KFNYGLTESQ LYRYIKEARR RKGVTGLILL QLLEMRLDTI CFTLGFAPTI ASARQLVNHG
     HITVNDNVVS IPSFQCQIND VIGIKPKATS KNLVEGNLQT IKQVDLPTHL KFDKSKQEAT
     VINYCDRNEL LLNLDELLVI EYYSRR