ID   LSRA_ECODH              Reviewed;         511 AA.
AC   B1XEA1;
DT   14-OCT-2008, integrated into UniProtKB/Swiss-Prot.
DT   20-MAY-2008, sequence version 1.
DT   03-AUG-2022, entry version 80.
DE   RecName: Full=Autoinducer 2 import ATP-binding protein LsrA {ECO:0000250|UniProtKB:P77257};
DE            Short=AI-2 import ATP-binding protein LsrA {ECO:0000250|UniProtKB:P77257};
DE            EC=7.6.2.13 {ECO:0000250|UniProtKB:P77257};
GN   Name=lsrA; OrderedLocusNames=ECDH10B_1644;
OS   Escherichia coli (strain K12 / DH10B).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=316385;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=K12 / DH10B;
RX   PubMed=18245285; DOI=10.1128/jb.01695-07;
RA   Durfee T., Nelson R., Baldwin S., Plunkett G. III, Burland V., Mau B.,
RA   Petrosino J.F., Qin X., Muzny D.M., Ayele M., Gibbs R.A., Csorgo B.,
RA   Posfai G., Weinstock G.M., Blattner F.R.;
RT   "The complete genome sequence of Escherichia coli DH10B: insights into the
RT   biology of a laboratory workhorse.";
RL   J. Bacteriol. 190:2597-2606(2008).
CC   -!- FUNCTION: Part of the ABC transporter complex LsrABCD involved in
CC       autoinducer 2 (AI-2) import. Responsible for energy coupling to the
CC       transport system. {ECO:0000250|UniProtKB:P77257}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + H2O + (2R,4S)-2-methyl-2,3,3,4-
CC         tetrahydroxytetrahydrofuran-[AI-2-binding protein]Side 1 = ADP +
CC         phosphate + (2R,4S)-2-methyl-2,3,3,4-tetrahydroxytetrahydrofuranSide
CC         2 + [AI-2-binding protein]Side 1.; EC=7.6.2.13;
CC         Evidence={ECO:0000250|UniProtKB:P77257};
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|UniProtKB:P77257}.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane
CC       {ECO:0000250|UniProtKB:P77257}; Peripheral membrane protein
CC       {ECO:0000250|UniProtKB:P77257}.
CC   -!- SIMILARITY: Belongs to the ABC transporter superfamily. AI-2
CC       autoinducer porter (TC 3.A.1.2.8) family. {ECO:0000305}.
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DR   EMBL; CP000948; ACB02723.1; -; Genomic_DNA.
DR   RefSeq; WP_001194860.1; NC_010473.1.
DR   AlphaFoldDB; B1XEA1; -.
DR   SMR; B1XEA1; -.
DR   KEGG; ecd:ECDH10B_1644; -.
DR   HOGENOM; CLU_000604_92_3_6; -.
DR   OMA; ITHRFPE; -.
DR   BioCyc; ECOL316385:ECDH10B_RS08420-MON; -.
DR   GO; GO:0016021; C:integral component of membrane; IEA:InterPro.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0042626; F:ATPase-coupled transmembrane transporter activity; IEA:InterPro.
DR   GO; GO:1905887; P:autoinducer AI-2 transmembrane transport; IEA:InterPro.
DR   Gene3D; 3.40.50.300; -; 2.
DR   InterPro; IPR003593; AAA+_ATPase.
DR   InterPro; IPR003439; ABC_transporter-like_ATP-bd.
DR   InterPro; IPR017871; ABC_transporter-like_CS.
DR   InterPro; IPR030281; LsrA.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   PANTHER; PTHR43790:SF2; PTHR43790:SF2; 1.
DR   Pfam; PF00005; ABC_tran; 2.
DR   SMART; SM00382; AAA; 2.
DR   SUPFAM; SSF52540; SSF52540; 2.
DR   PROSITE; PS00211; ABC_TRANSPORTER_1; 1.
DR   PROSITE; PS50893; ABC_TRANSPORTER_2; 2.
PE   3: Inferred from homology;
KW   ATP-binding; Cell inner membrane; Cell membrane; Membrane;
KW   Nucleotide-binding; Repeat; Translocase; Transport.
FT   CHAIN           1..511
FT                   /note="Autoinducer 2 import ATP-binding protein LsrA"
FT                   /id="PRO_0000351291"
FT   DOMAIN          12..240
FT                   /note="ABC transporter 1"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00434"
FT   DOMAIN          240..503
FT                   /note="ABC transporter 2"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00434"
FT   BINDING         44..51
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00434"
SQ   SEQUENCE   511 AA;  55821 MW;  CC399008BFFD55FA CRC64;
     MQTSDTRALP LLCARSVYKQ YSGVNVLKGI DFTLHQGEVH ALLGGNGAGK STLMKIIAGI
     TPADSGTLEI EGNNYVRLTP VHAHQLGIYL VPQEPLLFPS LSIKENILFG LAKKQLSMQK
     MKNLLAALGC QFDLHSLAGS LDVADRQMVE ILRGLMRDSR ILILDEPTAS LTPAETERLF
     SRLQELLATG VGIVFISHKL PEIRQIADRI SVMRDGTIAL SGKTSELSTD DIIQAITPAV
     REKSLSASQK LWLELPGNRP QHAAGTPVLT LENLTGEGFR NVSLTLNAGE ILGLAGLVGA
     GRTELAETLY GLRTLRGGRI MLNGKEINKL STGERLLRGL VYLPEDRQSS GLNLDASLAW
     NVCALTHNLR GFWAKTAKDN ATLERYRRAL NIKFNQPEQA ARTLSGGNQQ KILIAKCLEA
     SPQVLIVDEP TRGVDVSARN DIYQLLRSIA AQNVAVLLIS SDLEEIELMA DRVYVMHQGE
     ITHSALTERD INVETIMRVA FGDSQRQEAS C