ID   RS18_CHLTR              Reviewed;          81 AA.
AC   O84808;
DT   30-MAY-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1998, sequence version 1.
DT   25-MAY-2022, entry version 104.
DE   RecName: Full=30S ribosomal protein S18 {ECO:0000255|HAMAP-Rule:MF_00270};
GN   Name=rpsR {ECO:0000255|HAMAP-Rule:MF_00270}; Synonyms=rs18;
GN   OrderedLocusNames=CT_802;
OS   Chlamydia trachomatis (strain D/UW-3/Cx).
OC   Bacteria; Chlamydiae; Chlamydiales; Chlamydiaceae;
OC   Chlamydia/Chlamydophila group; Chlamydia.
OX   NCBI_TaxID=272561;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=D/UW-3/Cx;
RX   PubMed=9784136; DOI=10.1126/science.282.5389.754;
RA   Stephens R.S., Kalman S., Lammel C.J., Fan J., Marathe R., Aravind L.,
RA   Mitchell W.P., Olinger L., Tatusov R.L., Zhao Q., Koonin E.V., Davis R.W.;
RT   "Genome sequence of an obligate intracellular pathogen of humans: Chlamydia
RT   trachomatis.";
RL   Science 282:754-759(1998).
CC   -!- FUNCTION: Binds as a heterodimer with protein S6 to the central domain
CC       of the 16S rRNA, where it helps stabilize the platform of the 30S
CC       subunit. {ECO:0000255|HAMAP-Rule:MF_00270}.
CC   -!- SUBUNIT: Part of the 30S ribosomal subunit. Forms a tight heterodimer
CC       with protein S6. {ECO:0000255|HAMAP-Rule:MF_00270}.
CC   -!- SIMILARITY: Belongs to the bacterial ribosomal protein bS18 family.
CC       {ECO:0000255|HAMAP-Rule:MF_00270}.
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DR   EMBL; AE001273; AAC68397.1; -; Genomic_DNA.
DR   PIR; H71469; H71469.
DR   RefSeq; NP_220322.1; NC_000117.1.
DR   RefSeq; WP_009872184.1; NC_000117.1.
DR   AlphaFoldDB; O84808; -.
DR   SMR; O84808; -.
DR   STRING; 813.O172_04475; -.
DR   EnsemblBacteria; AAC68397; AAC68397; CT_802.
DR   GeneID; 884602; -.
DR   KEGG; ctr:CT_802; -.
DR   PATRIC; fig|272561.5.peg.883; -.
DR   HOGENOM; CLU_148710_2_2_0; -.
DR   InParanoid; O84808; -.
DR   OMA; QKKYCRF; -.
DR   Proteomes; UP000000431; Chromosome.
DR   GO; GO:0022627; C:cytosolic small ribosomal subunit; IBA:GO_Central.
DR   GO; GO:0070181; F:small ribosomal subunit rRNA binding; IBA:GO_Central.
DR   GO; GO:0003735; F:structural constituent of ribosome; IBA:GO_Central.
DR   GO; GO:0006412; P:translation; IEA:UniProtKB-UniRule.
DR   Gene3D; 4.10.640.10; -; 1.
DR   HAMAP; MF_00270; Ribosomal_S18; 1.
DR   InterPro; IPR001648; Ribosomal_S18.
DR   InterPro; IPR018275; Ribosomal_S18_CS.
DR   InterPro; IPR036870; Ribosomal_S18_sf.
DR   PANTHER; PTHR13479; PTHR13479; 1.
DR   Pfam; PF01084; Ribosomal_S18; 1.
DR   PRINTS; PR00974; RIBOSOMALS18.
DR   SUPFAM; SSF46911; SSF46911; 1.
DR   TIGRFAMs; TIGR00165; S18; 1.
DR   PROSITE; PS00057; RIBOSOMAL_S18; 1.
PE   3: Inferred from homology;
KW   Reference proteome; Ribonucleoprotein; Ribosomal protein; RNA-binding;
KW   rRNA-binding.
FT   CHAIN           1..81
FT                   /note="30S ribosomal protein S18"
FT                   /id="PRO_0000111142"
SQ   SEQUENCE   81 AA;  9402 MW;  663F7B9FF1ECA2BE CRC64;
     MNRPVHNEHR RKRFAKKCPF VSAGWKTIDY KDVTTLKRFI TERGKILPRR ITGVSSRFQA
     LLAQAVKRAR HVGLLPFVGE D