ID   LSRB_SHIFL              Reviewed;         340 AA.
AC   P0C887;
DT   14-OCT-2008, integrated into UniProtKB/Swiss-Prot.
DT   14-OCT-2008, sequence version 1.
DT   03-AUG-2022, entry version 41.
DE   RecName: Full=Autoinducer 2-binding protein LsrB;
DE            Short=AI-2-binding protein LsrB;
DE   Flags: Precursor;
GN   Name=lsrB; OrderedLocusNames=SF1586, S1712;
OS   Shigella flexneri.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Shigella.
OX   NCBI_TaxID=623;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=301 / Serotype 2a;
RX   PubMed=12384590; DOI=10.1093/nar/gkf566;
RA   Jin Q., Yuan Z., Xu J., Wang Y., Shen Y., Lu W., Wang J., Liu H., Yang J.,
RA   Yang F., Zhang X., Zhang J., Yang G., Wu H., Qu D., Dong J., Sun L.,
RA   Xue Y., Zhao A., Gao Y., Zhu J., Kan B., Ding K., Chen S., Cheng H.,
RA   Yao Z., He B., Chen R., Ma D., Qiang B., Wen Y., Hou Y., Yu J.;
RT   "Genome sequence of Shigella flexneri 2a: insights into pathogenicity
RT   through comparison with genomes of Escherichia coli K12 and O157.";
RL   Nucleic Acids Res. 30:4432-4441(2002).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700930 / 2457T / Serotype 2a;
RX   PubMed=12704152; DOI=10.1128/iai.71.5.2775-2786.2003;
RA   Wei J., Goldberg M.B., Burland V., Venkatesan M.M., Deng W., Fournier G.,
RA   Mayhew G.F., Plunkett G. III, Rose D.J., Darling A., Mau B., Perna N.T.,
RA   Payne S.M., Runyen-Janecky L.J., Zhou S., Schwartz D.C., Blattner F.R.;
RT   "Complete genome sequence and comparative genomics of Shigella flexneri
RT   serotype 2a strain 2457T.";
RL   Infect. Immun. 71:2775-2786(2003).
CC   -!- FUNCTION: Part of the ABC transporter complex LsrABCD involved in
CC       autoinducer 2 (AI-2) import. Binds AI-2 and delivers it to the LsrC and
CC       LsrD permeases (By similarity). {ECO:0000250}.
CC   -!- SUBUNIT: The complex is composed of two ATP-binding proteins (LsrA),
CC       two transmembrane proteins (LsrC and LsrD) and a solute-binding protein
CC       (LsrB). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Periplasm {ECO:0000305}.
CC   -!- SIMILARITY: Belongs to the bacterial solute-binding protein 2 family.
CC       {ECO:0000305}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=AE005674; Type=Frameshift; Evidence={ECO:0000305};
CC       Sequence=AE014073; Type=Frameshift; Evidence={ECO:0000305};
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DR   EMBL; AE005674; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR   EMBL; AE014073; -; NOT_ANNOTATED_CDS; Genomic_DNA.
DR   AlphaFoldDB; P0C887; -.
DR   SMR; P0C887; -.
DR   Proteomes; UP000001006; Chromosome.
DR   Proteomes; UP000002673; Chromosome.
DR   GO; GO:0043190; C:ATP-binding cassette (ABC) transporter complex; IEA:InterPro.
DR   GO; GO:0030288; C:outer membrane-bounded periplasmic space; IEA:UniProt.
DR   CDD; cd20003; PBP1_LsrB_Quorum_Sensing; 1.
DR   InterPro; IPR030159; LsrB.
DR   InterPro; IPR028082; Peripla_BP_I.
DR   InterPro; IPR025997; SBP_2_dom.
DR   PANTHER; PTHR46847:SF4; PTHR46847:SF4; 1.
DR   Pfam; PF13407; Peripla_BP_4; 1.
DR   SUPFAM; SSF53822; SSF53822; 1.
PE   3: Inferred from homology;
KW   Periplasm; Reference proteome; Signal.
FT   SIGNAL          1..26
FT                   /evidence="ECO:0000255"
FT   CHAIN           27..340
FT                   /note="Autoinducer 2-binding protein LsrB"
FT                   /id="PRO_0000351331"
SQ   SEQUENCE   340 AA;  36743 MW;  AD9E3EDCC08062D0 CRC64;
     MTLHRFKKIA LLSALGIAAI SMNVQAAERI AFIPKLVGVG FFTSGGNGAQ QAGKELSVDV
     TYDGPTEPSV SGQVQLINNF VNQGYNAIIV SAVSPDGLCP ALKRAMQRGV RVLTWDSDTK
     PECRSYYINQ GTPAQLGGML VDMAARQVNK DKAKVAFFYS SPTVTDQNQW VKEAKAKIAK
     EHPGWEIVTT QFGYNDATKS LQTAEGILKA YSDLDAIIAP DANALPAAAQ AAENLKNDKV
     AIVGFSTPNV MRPYVERGTV KEFGLWDVVQ QGKISVYVAD VLLKKGSMKT GDKLDIQGVG
     QVEVSPNSVQ GYDYEADGNG IVLLPERVIF NKENIGKYDF