ID   RS1B_SYNY3              Reviewed;         305 AA.
AC   P74142;
DT   01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1997, sequence version 1.
DT   25-MAY-2022, entry version 115.
DE   RecName: Full=30S ribosomal protein S1 homolog B;
GN   Name=rps1b; OrderedLocusNames=slr1984;
OS   Synechocystis sp. (strain PCC 6803 / Kazusa).
OC   Bacteria; Cyanobacteria; Synechococcales; Merismopediaceae; Synechocystis;
OC   unclassified Synechocystis.
OX   NCBI_TaxID=1111708;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PCC 6803 / Kazusa;
RX   PubMed=8905231; DOI=10.1093/dnares/3.3.109;
RA   Kaneko T., Sato S., Kotani H., Tanaka A., Asamizu E., Nakamura Y.,
RA   Miyajima N., Hirosawa M., Sugiura M., Sasamoto S., Kimura T., Hosouchi T.,
RA   Matsuno A., Muraki A., Nakazaki N., Naruo K., Okumura S., Shimpo S.,
RA   Takeuchi C., Wada T., Watanabe A., Yamada M., Yasuda M., Tabata S.;
RT   "Sequence analysis of the genome of the unicellular cyanobacterium
RT   Synechocystis sp. strain PCC6803. II. Sequence determination of the entire
RT   genome and assignment of potential protein-coding regions.";
RL   DNA Res. 3:109-136(1996).
CC   -!- FUNCTION: Binds mRNA.
CC   -!- SIMILARITY: Belongs to the bacterial ribosomal protein bS1 family.
CC       {ECO:0000305}.
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DR   EMBL; BA000022; BAA18228.1; -; Genomic_DNA.
DR   PIR; S75667; S75667.
DR   AlphaFoldDB; P74142; -.
DR   IntAct; P74142; 1.
DR   STRING; 1148.1653313; -.
DR   PaxDb; P74142; -.
DR   EnsemblBacteria; BAA18228; BAA18228; BAA18228.
DR   KEGG; syn:slr1984; -.
DR   eggNOG; COG0539; Bacteria.
DR   InParanoid; P74142; -.
DR   OMA; DYQFQKG; -.
DR   PhylomeDB; P74142; -.
DR   Proteomes; UP000001425; Chromosome.
DR   GO; GO:0022627; C:cytosolic small ribosomal subunit; IBA:GO_Central.
DR   GO; GO:0003729; F:mRNA binding; IBA:GO_Central.
DR   GO; GO:0003735; F:structural constituent of ribosome; IBA:GO_Central.
DR   GO; GO:0006412; P:translation; IBA:GO_Central.
DR   Gene3D; 2.40.50.140; -; 3.
DR   InterPro; IPR012340; NA-bd_OB-fold.
DR   InterPro; IPR035104; Ribosomal_protein_S1-like.
DR   InterPro; IPR022967; S1_dom.
DR   InterPro; IPR003029; S1_domain.
DR   PANTHER; PTHR10724:SF7; PTHR10724:SF7; 1.
DR   Pfam; PF00575; S1; 3.
DR   PRINTS; PR00681; RIBOSOMALS1.
DR   SMART; SM00316; S1; 3.
DR   SUPFAM; SSF50249; SSF50249; 3.
DR   PROSITE; PS50126; S1; 3.
PE   3: Inferred from homology;
KW   Reference proteome; Repeat; Ribonucleoprotein; Ribosomal protein;
KW   RNA-binding.
FT   CHAIN           1..305
FT                   /note="30S ribosomal protein S1 homolog B"
FT                   /id="PRO_0000196059"
FT   DOMAIN          29..98
FT                   /note="S1 motif 1"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00180"
FT   DOMAIN          116..180
FT                   /note="S1 motif 2"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00180"
FT   DOMAIN          194..262
FT                   /note="S1 motif 3"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00180"
SQ   SEQUENCE   305 AA;  33795 MW;  358C35F778BE03F5 CRC64;
     MPSSSNSAAF SLDEFAKALD KHDYHAEKGQ TVHGKICQHA NEGVYVDFGG KSPGFVPVQE
     LGLRPHAEIE DSFPLDSAWD FLVTSEQNDE GQVRLSRRQL QIQQSWENLA ELEESGKTLE
     MVVTGTNKGG VVGDVEGLRG FIPRSHLMHK DNMDALVGQV LKAHILEANQ DNNKLVLTQR
     RIQQAESMGK IAAGNIYEGK VAKIQPYGVF VEIEGVTGLL HVSQVSGTRV DSLNTLFAFG
     QAISVYVQEI DEYKNRISLS TRILETYPGE LVEKFDEMMA DAPNRLPLVQ SKQNLGDKQE
     QLEKS