ID   RS3_PROM2               Reviewed;         243 AA.
AC   A8G756;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   13-NOV-2007, sequence version 1.
DT   25-MAY-2022, entry version 78.
DE   RecName: Full=30S ribosomal protein S3 {ECO:0000255|HAMAP-Rule:MF_01309};
GN   Name=rpsC {ECO:0000255|HAMAP-Rule:MF_01309};
GN   Synonyms=rps3 {ECO:0000255|HAMAP-Rule:MF_01309};
GN   OrderedLocusNames=P9215_18241;
OS   Prochlorococcus marinus (strain MIT 9215).
OC   Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC   Prochlorococcus.
OX   NCBI_TaxID=93060;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MIT 9215;
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: 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}.
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DR   EMBL; CP000825; ABV51437.1; -; Genomic_DNA.
DR   RefSeq; WP_012008443.1; NC_009840.1.
DR   AlphaFoldDB; A8G756; -.
DR   SMR; A8G756; -.
DR   STRING; 93060.P9215_18241; -.
DR   EnsemblBacteria; ABV51437; ABV51437; P9215_18241.
DR   KEGG; pmh:P9215_18241; -.
DR   eggNOG; COG0092; Bacteria.
DR   HOGENOM; CLU_058591_0_2_3; -.
DR   OMA; KTNPIGN; -.
DR   OrthoDB; 1132353at2; -.
DR   Proteomes; UP000002014; Chromosome.
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   3: Inferred from homology;
KW   Ribonucleoprotein; Ribosomal protein; RNA-binding; rRNA-binding.
FT   CHAIN           1..243
FT                   /note="30S ribosomal protein S3"
FT                   /id="PRO_1000086143"
FT   DOMAIN          39..110
FT                   /note="KH type-2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01309"
FT   REGION          216..243
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        229..243
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   243 AA;  27479 MW;  C05E5B53DD39D15B CRC64;
     MGHKIHPSGL RLGITQEHRS KWFATSKTYP ILLQEDFKIR TFIEKKYGAA GISDVLIARK
     ADQLELELKT ARPGVIVGRQ GSGIEELRSG IQKTIGDRTR QVRINVVEVE RVDADAFLLA
     EYIAQQLEKR VAFRRTIRMA LQRAQRAGVL GLKIQVGGRL NGAEIARTEW TREGRVPLHT
     LRAEIDYATR EANTTYGVLG IKVWVFKGEV LPKEEQTIPV GANPKRKASR RPQQFEDRSN
     ENS