ID   RHAR_ECO24              Reviewed;         282 AA.
AC   A7ZUB8;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   05-FEB-2008, sequence version 2.
DT   25-MAY-2022, entry version 90.
DE   RecName: Full=HTH-type transcriptional activator RhaR {ECO:0000255|HAMAP-Rule:MF_01533};
DE   AltName: Full=L-rhamnose operon transcriptional activator RhaR {ECO:0000255|HAMAP-Rule:MF_01533};
GN   Name=rhaR {ECO:0000255|HAMAP-Rule:MF_01533};
GN   OrderedLocusNames=EcE24377A_4439;
OS   Escherichia coli O139:H28 (strain E24377A / ETEC).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=331111;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=E24377A / ETEC;
RX   PubMed=18676672; DOI=10.1128/jb.00619-08;
RA   Rasko D.A., Rosovitz M.J., Myers G.S.A., Mongodin E.F., Fricke W.F.,
RA   Gajer P., Crabtree J., Sebaihia M., Thomson N.R., Chaudhuri R.,
RA   Henderson I.R., Sperandio V., Ravel J.;
RT   "The pangenome structure of Escherichia coli: comparative genomic analysis
RT   of E. coli commensal and pathogenic isolates.";
RL   J. Bacteriol. 190:6881-6893(2008).
CC   -!- FUNCTION: Activates expression of the rhaSR operon in response to L-
CC       rhamnose. {ECO:0000255|HAMAP-Rule:MF_01533}.
CC   -!- SUBUNIT: Binds DNA as a dimer. {ECO:0000255|HAMAP-Rule:MF_01533}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01533}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=ABV18617.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; CP000800; ABV18617.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_001298410.1; NC_009801.1.
DR   AlphaFoldDB; A7ZUB8; -.
DR   SMR; A7ZUB8; -.
DR   EnsemblBacteria; ABV18617; ABV18617; EcE24377A_4439.
DR   KEGG; ecw:EcE24377A_4439; -.
DR   HOGENOM; CLU_000445_88_5_6; -.
DR   OMA; NREVGMT; -.
DR   Proteomes; UP000001122; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0003700; F:DNA-binding transcription factor activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0043565; F:sequence-specific DNA binding; IEA:InterPro.
DR   GO; GO:0045893; P:positive regulation of transcription, DNA-templated; IEA:UniProtKB-UniRule.
DR   GO; GO:0019299; P:rhamnose metabolic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 2.60.120.10; -; 1.
DR   HAMAP; MF_01533; HTH_type_RhaR; 1.
DR   InterPro; IPR003313; AraC-bd.
DR   InterPro; IPR009057; Homeobox-like_sf.
DR   InterPro; IPR018060; HTH_AraC.
DR   InterPro; IPR018062; HTH_AraC-typ_CS.
DR   InterPro; IPR014710; RmlC-like_jellyroll.
DR   InterPro; IPR011051; RmlC_Cupin_sf.
DR   InterPro; IPR023699; Tscrpt_act_RhaR.
DR   InterPro; IPR020449; Tscrpt_reg_HTH_AraC-type.
DR   Pfam; PF02311; AraC_binding; 1.
DR   Pfam; PF12833; HTH_18; 1.
DR   PRINTS; PR00032; HTHARAC.
DR   SMART; SM00342; HTH_ARAC; 1.
DR   SUPFAM; SSF46689; SSF46689; 2.
DR   SUPFAM; SSF51182; SSF51182; 1.
DR   PROSITE; PS00041; HTH_ARAC_FAMILY_1; 1.
DR   PROSITE; PS01124; HTH_ARAC_FAMILY_2; 1.
PE   3: Inferred from homology;
KW   Activator; Cytoplasm; DNA-binding; Repeat; Rhamnose metabolism;
KW   Transcription; Transcription regulation.
FT   CHAIN           1..282
FT                   /note="HTH-type transcriptional activator RhaR"
FT                   /id="PRO_0000316895"
FT   DOMAIN          179..277
FT                   /note="HTH araC/xylS-type"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01533"
FT   DNA_BIND        196..217
FT                   /note="H-T-H motif"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01533"
FT   DNA_BIND        244..267
FT                   /note="H-T-H motif"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01533"
FT   SITE            246
FT                   /note="Interaction with sigma-70"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01533"
SQ   SEQUENCE   282 AA;  32304 MW;  EA3E9D564149FB32 CRC64;
     MAHQLKLLKD DFFASDQQAV AVADRYPQDV FAEHTHDFCE LVIVWRGNGL HVLNDRPYRI
     TRGDLFYIHA DDKHSYASVN DLVLQNIIYC PERLKLNLDW QGAIPGFSAS AGQPHWRLGS
     VGMAQARQVI GQLEHESSQH VSFANEMAEL LFGQLVMLLN RHRYTSDSLP PTSSETLLDK
     LITRLAASLK SPFALDKFCD EASCSERVLR QQFRQQTGMT INQYLRQVRV CHAQYLLQHS
     RLLISDISTE CGFEDSNYFS VVFTRETGMT PSQWRHLNSQ KD