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SSRP_WOLSU
ID   SSRP_WOLSU              Reviewed;         151 AA.
AC   Q7M9J0;
DT   15-DEC-2003, integrated into UniProtKB/Swiss-Prot.
DT   15-DEC-2003, sequence version 1.
DT   25-MAY-2022, entry version 87.
DE   RecName: Full=SsrA-binding protein {ECO:0000255|HAMAP-Rule:MF_00023};
DE   AltName: Full=Small protein B {ECO:0000255|HAMAP-Rule:MF_00023};
GN   Name=smpB {ECO:0000255|HAMAP-Rule:MF_00023}; OrderedLocusNames=WS0883;
OS   Wolinella succinogenes (strain ATCC 29543 / DSM 1740 / LMG 7466 / NCTC
OS   11488 / FDC 602W) (Vibrio succinogenes).
OC   Bacteria; Proteobacteria; Epsilonproteobacteria; Campylobacterales;
OC   Helicobacteraceae; Wolinella.
OX   NCBI_TaxID=273121;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 29543 / DSM 1740 / CCUG 13145 / JCM 31913 / LMG 7466 / NCTC
RC   11488 / FDC 602W;
RX   PubMed=14500908; DOI=10.1073/pnas.1932838100;
RA   Baar C., Eppinger M., Raddatz G., Simon J., Lanz C., Klimmek O.,
RA   Nandakumar R., Gross R., Rosinus A., Keller H., Jagtap P., Linke B.,
RA   Meyer F., Lederer H., Schuster S.C.;
RT   "Complete genome sequence and analysis of Wolinella succinogenes.";
RL   Proc. Natl. Acad. Sci. U.S.A. 100:11690-11695(2003).
CC   -!- FUNCTION: Required for rescue of stalled ribosomes mediated by trans-
CC       translation. Binds to transfer-messenger RNA (tmRNA), required for
CC       stable association of tmRNA with ribosomes. tmRNA and SmpB together
CC       mimic tRNA shape, replacing the anticodon stem-loop with SmpB. tmRNA is
CC       encoded by the ssrA gene; the 2 termini fold to resemble tRNA(Ala) and
CC       it encodes a 'tag peptide', a short internal open reading frame. During
CC       trans-translation Ala-aminoacylated tmRNA acts like a tRNA, entering
CC       the A-site of stalled ribosomes, displacing the stalled mRNA. The
CC       ribosome then switches to translate the ORF on the tmRNA; the nascent
CC       peptide is terminated with the 'tag peptide' encoded by the tmRNA and
CC       targeted for degradation. The ribosome is freed to recommence
CC       translation, which seems to be the essential function of trans-
CC       translation. {ECO:0000255|HAMAP-Rule:MF_00023}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00023}.
CC       Note=The tmRNA-SmpB complex associates with stalled 70S ribosomes.
CC       {ECO:0000255|HAMAP-Rule:MF_00023}.
CC   -!- SIMILARITY: Belongs to the SmpB family. {ECO:0000255|HAMAP-
CC       Rule:MF_00023}.
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DR   EMBL; BX571659; CAE09989.1; -; Genomic_DNA.
DR   RefSeq; WP_011138786.1; NC_005090.1.
DR   AlphaFoldDB; Q7M9J0; -.
DR   SMR; Q7M9J0; -.
DR   STRING; 273121.WS0883; -.
DR   EnsemblBacteria; CAE09989; CAE09989; WS0883.
DR   KEGG; wsu:WS0883; -.
DR   eggNOG; COG0691; Bacteria.
DR   HOGENOM; CLU_108953_3_1_7; -.
DR   OMA; WTNHSAR; -.
DR   OrthoDB; 1720952at2; -.
DR   Proteomes; UP000000422; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0003723; F:RNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0070929; P:trans-translation; IEA:UniProtKB-UniRule.
DR   CDD; cd09294; SmpB; 1.
DR   Gene3D; 2.40.280.10; -; 1.
DR   HAMAP; MF_00023; SmpB; 1.
DR   InterPro; IPR023620; SmpB.
DR   InterPro; IPR000037; SsrA-bd_prot.
DR   InterPro; IPR020081; SsrA-bd_prot_CS.
DR   PANTHER; PTHR30308; PTHR30308; 1.
DR   Pfam; PF01668; SmpB; 1.
DR   SUPFAM; SSF74982; SSF74982; 1.
DR   TIGRFAMs; TIGR00086; smpB; 1.
DR   PROSITE; PS01317; SSRP; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Reference proteome; RNA-binding.
FT   CHAIN           1..151
FT                   /note="SsrA-binding protein"
FT                   /id="PRO_0000103069"
SQ   SEQUENCE   151 AA;  17238 MW;  BEFF28A316B24FB3 CRC64;
     MARKVIANNK KALFDFHILE RLEAGIALSG SEVKAIRAGR VNLKDSFVKI IKGEAFLLNA
     HISYLETTNP HYKPDERRPR KLLLHRKQID KLTGSVSTEG MTLVTLSIYF NERNRAKAEI
     ALAKGKNLHD KRETLKKRIL DREVKAALKE H
 
 
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