ID   RS3_GEOSE               Reviewed;         218 AA.
AC   P23309;
DT   01-NOV-1991, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 2.
DT   25-MAY-2022, entry version 101.
DE   RecName: Full=30S ribosomal protein S3 {ECO:0000255|HAMAP-Rule:MF_01309};
DE   AltName: Full=BS2;
DE   AltName: Full=BS3/BS4;
GN   Name=rpsC {ECO:0000255|HAMAP-Rule:MF_01309};
OS   Geobacillus stearothermophilus (Bacillus stearothermophilus).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Geobacillus.
OX   NCBI_TaxID=1422;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=ATCC 29609 / DSM 2027 / NCA 1503 / NCIMB 8924;
RX   PubMed=2222862; DOI=10.1515/bchm3.1990.371.2.631;
RA   Kroemer W.J., Hatakeyama T., Kimura M.;
RT   "Nucleotide sequences of Bacillus stearothermophilus ribosomal protein
RT   genes: part of the ribosomal S10 operon.";
RL   Biol. Chem. Hoppe-Seyler 371:631-636(1990).
RN   [2]
RP   PROTEIN SEQUENCE OF 2-16.
RC   STRAIN=DSM 13240 / CIP 106956 / 10;
RX   PubMed=4607606; DOI=10.1016/0014-5793(74)80391-1;
RA   Yaguchi M., Matheson A.T., Visentin L.P.;
RT   "Procaryotic ribosomal proteins: N-terminal sequence homologies and
RT   structural correspondence of 30 S ribosomal proteins from Escherichia coli
RT   and Bacillus stearothermophilus.";
RL   FEBS Lett. 46:296-300(1974).
CC   -!- FUNCTION: Binds the lower part of the 30S subunit head. Binds mRNA in
CC       the 70S ribosome, positioning it for translation. {ECO:0000255|HAMAP-
CC       Rule:MF_01309}.
CC   -!- SUBUNIT: Part of the 30S ribosomal subunit. Forms a tight complex with
CC       proteins S10 and S14. {ECO:0000255|HAMAP-Rule:MF_01309}.
CC   -!- SIMILARITY: Belongs to the universal ribosomal protein uS3 family.
CC       {ECO:0000255|HAMAP-Rule:MF_01309}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; X54994; CAA38740.1; -; Genomic_DNA.
DR   PIR; S10613; S10613.
DR   AlphaFoldDB; P23309; -.
DR   SMR; P23309; -.
DR   GO; GO:0005840; C:ribosome; IEA:UniProtKB-KW.
DR   GO; GO:0003729; F:mRNA binding; IEA:UniProtKB-UniRule.
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   Gene3D; 3.30.1140.32; -; 1.
DR   Gene3D; 3.30.300.20; -; 1.
DR   HAMAP; MF_01309_B; Ribosomal_S3_B; 1.
DR   InterPro; IPR004087; KH_dom.
DR   InterPro; IPR015946; KH_dom-like_a/b.
DR   InterPro; IPR004044; KH_dom_type_2.
DR   InterPro; IPR009019; KH_sf_prok-type.
DR   InterPro; IPR005704; Ribosomal_S3_bac-typ.
DR   InterPro; IPR001351; Ribosomal_S3_C.
DR   InterPro; IPR036419; Ribosomal_S3_C_sf.
DR   InterPro; IPR018280; Ribosomal_S3_CS.
DR   Pfam; PF07650; KH_2; 1.
DR   Pfam; PF00189; Ribosomal_S3_C; 1.
DR   SMART; SM00322; KH; 1.
DR   SUPFAM; SSF54814; SSF54814; 1.
DR   SUPFAM; SSF54821; SSF54821; 1.
DR   TIGRFAMs; TIGR01009; rpsC_bact; 1.
DR   PROSITE; PS50823; KH_TYPE_2; 1.
DR   PROSITE; PS00548; RIBOSOMAL_S3; 1.
PE   1: Evidence at protein level;
KW   Direct protein sequencing; Ribonucleoprotein; Ribosomal protein;
KW   RNA-binding; rRNA-binding.
FT   INIT_MET        1
FT                   /note="Removed"
FT                   /evidence="ECO:0000269|PubMed:4607606"
FT   CHAIN           2..218
FT                   /note="30S ribosomal protein S3"
FT                   /id="PRO_0000130072"
FT   DOMAIN          38..106
FT                   /note="KH type-2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01309"
SQ   SEQUENCE   218 AA;  24589 MW;  6A07310B577C8C3C CRC64;
     MGQKVNPIGL RIGIIRDWES RWYAEKDYAD LVHEDLKIRE YINKRLQDAA VSRVEIERAA
     NRVNVTIHTA KPGMVIGKGG SEVEALRKAL TQLTGKREHI NIVEIKKPDL DAKLVAENIA
     RQLENRVSFR RAQKQAIQRA MRPGRKGVKT MVVRRLGGAE IARSEHYSEG TVPLHTLRAD
     IDYATAEADT TYGKIGVKVW IYRGEVLPTK KKAEEGGK