ID RS3_XANP2 Reviewed; 252 AA.
AC A7IFY7;
DT 14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT 11-SEP-2007, sequence version 1.
DT 28-JAN-2026, entry version 93.
DE RecName: Full=Small ribosomal subunit protein uS3 {ECO:0000255|HAMAP-Rule:MF_01309};
DE AltName: Full=30S ribosomal protein S3 {ECO:0000305};
GN Name=rpsC {ECO:0000255|HAMAP-Rule:MF_01309}; OrderedLocusNames=Xaut_1685;
OS Xanthobacter autotrophicus (strain ATCC BAA-1158 / Py2).
OC Bacteria; Pseudomonadati; Pseudomonadota; Alphaproteobacteria;
OC Hyphomicrobiales; Xanthobacteraceae; Xanthobacter.
OX NCBI_TaxID=78245;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-1158 / Py2;
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Barry K., Glavina del Rio T., Hammon N.,
RA Israni S., Dalin E., Tice H., Pitluck S., Sims D., Brettin T., Bruce D.,
RA Detter J.C., Han C., Tapia R., Brainard J., Schmutz J., Larimer F.,
RA Land M., Hauser L., Kyrpides N., Kim E., Ensigns S.A., Richardson P.;
RT "Complete sequence of chromosome of Xanthobacter autotrophicus Py2.";
RL Submitted (JUL-2007) to the EMBL/GenBank/DDBJ databases.
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; CP000781; ABS66930.1; -; Genomic_DNA.
DR AlphaFoldDB; A7IFY7; -.
DR SMR; A7IFY7; -.
DR STRING; 78245.Xaut_1685; -.
DR KEGG; xau:Xaut_1685; -.
DR eggNOG; COG0092; Bacteria.
DR HOGENOM; CLU_058591_0_2_5; -.
DR OrthoDB; 9806396at2; -.
DR PhylomeDB; A7IFY7; -.
DR Proteomes; UP000002417; Chromosome.
DR GO; GO:0022627; C:cytosolic small ribosomal subunit; IEA:TreeGrafter.
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 CDD; cd02412; KH-II_30S_S3; 1.
DR FunFam; 3.30.1140.32:FF:000009; 30S ribosomal protein S3; 1.
DR FunFam; 3.30.300.20:FF:000001; 30S ribosomal protein S3; 1.
DR Gene3D; 3.30.300.20; -; 1.
DR Gene3D; 3.30.1140.32; Ribosomal protein S3, C-terminal domain; 1.
DR HAMAP; MF_01309_B; Ribosomal_uS3_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; IPR036419; Ribosomal_S3_C_sf.
DR InterPro; IPR057258; Ribosomal_uS3.
DR InterPro; IPR005704; Ribosomal_uS3_bac-typ.
DR InterPro; IPR001351; Ribosomal_uS3_C.
DR InterPro; IPR018280; Ribosomal_uS3_CS.
DR NCBIfam; TIGR01009; rpsC_bact; 1.
DR PANTHER; PTHR11760; 30S/40S RIBOSOMAL PROTEIN S3; 1.
DR PANTHER; PTHR11760:SF19; SMALL RIBOSOMAL SUBUNIT PROTEIN US3C; 1.
DR Pfam; PF07650; KH_2; 1.
DR Pfam; PF00189; Ribosomal_S3_C; 1.
DR SMART; SM00322; KH; 1.
DR SUPFAM; SSF54814; Prokaryotic type KH domain (KH-domain type II); 1.
DR SUPFAM; SSF54821; Ribosomal protein S3 C-terminal domain; 1.
DR PROSITE; PS50823; KH_TYPE_2; 1.
DR PROSITE; PS00548; RIBOSOMAL_S3; 1.
PE 3: Inferred from homology;
KW Reference proteome; Ribonucleoprotein; Ribosomal protein; RNA-binding;
KW rRNA-binding.
FT CHAIN 1..252
FT /note="Small ribosomal subunit protein uS3"
FT /id="PRO_1000141034"
FT DOMAIN 39..107
FT /note="KH type-2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01309"
FT REGION 212..252
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 212..221
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 231..252
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 252 AA; 28662 MW; D46F7853B90E0B45 CRC64;
MGQKVNPVGL RLGINRTWDS RWFANKGEYG KLLHEDIKIR EMLFKQLKQA AVSKVVIERP
HKKCRVTIYS GRPGVVIGKK GADIDKLRKK VSEMTSSEVF INIVEIRKPE IDARLVAESI
AQQLERRVAF RRAMKRAVQS AMRLGAEGIR INCSGRLGGA EIARLEWYRE GRVPLHTLRA
DVDYGTATAF TTYGTCGVKV WVFKGEILEH DPMAQDKRQA EQEAGPSSRP QRRERGDRER
GDRGDRDRGH RA
//
