ID   BETI_BRUA2              Reviewed;         198 AA.
AC   Q2YMS6;
DT   31-OCT-2006, integrated into UniProtKB/Swiss-Prot.
DT   07-FEB-2006, sequence version 1.
DT   02-SEP-2026, entry version 107.
DE   RecName: Full=HTH-type transcriptional regulator BetI {ECO:0000255|HAMAP-Rule:MF_00768};
GN   Name=betI {ECO:0000255|HAMAP-Rule:MF_00768};
GN   OrderedLocusNames=BAB1_0578;
OS   Brucella abortus (strain 2308).
OC   Bacteria; Pseudomonadati; Pseudomonadota; Alphaproteobacteria;
OC   Hyphomicrobiales; Brucellaceae; Brucella/Ochrobactrum group; Brucella;
OC   Brucella melitensis group.
OX   NCBI_TaxID=359391;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=2308;
RX   PubMed=16299333; DOI=10.1128/iai.73.12.8353-8361.2005;
RA   Chain P.S., Comerci D.J., Tolmasky M.E., Larimer F.W., Malfatti S.A.,
RA   Vergez L.M., Aguero F., Land M.L., Ugalde R.A., Garcia E.;
RT   "Whole-genome analyses of speciation events in pathogenic Brucellae.";
RL   Infect. Immun. 73:8353-8361(2005).
CC   -!- FUNCTION: Repressor involved in the biosynthesis of the osmoprotectant
CC       glycine betaine. It represses transcription of the choline transporter
CC       BetT and the genes of BetAB involved in the synthesis of glycine
CC       betaine (By similarity). {ECO:0000250}.
CC   -!- PATHWAY: Amine and polyamine biosynthesis; betaine biosynthesis via
CC       choline pathway [regulation].
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DR   EMBL; AM040264; CAJ10534.1; -; Genomic_DNA.
DR   RefSeq; WP_002969060.1; NC_007618.1.
DR   AlphaFoldDB; Q2YMS6; -.
DR   SMR; Q2YMS6; -.
DR   STRING; 359391.BAB1_0578; -.
DR   GeneID; 93017025; -.
DR   KEGG; bmf:BAB1_0578; -.
DR   PATRIC; fig|359391.11.peg.2888; -.
DR   HOGENOM; CLU_069356_15_4_5; -.
DR   UniPathway; UPA00529; -.
DR   Proteomes; UP000002719; Chromosome I.
DR   GO; GO:0003700; F:DNA-binding transcription factor activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0000976; F:transcription cis-regulatory region binding; IEA:TreeGrafter.
DR   GO; GO:0019285; P:glycine betaine biosynthetic process from choline; IEA:UniProtKB-UniRule.
DR   GO; GO:0045892; P:negative regulation of DNA-templated transcription; IEA:UniProtKB-UniRule.
DR   Gene3D; 1.10.357.10; Tetracycline Repressor, domain 2; 1.
DR   HAMAP; MF_00768; HTH_type_BetI; 1.
DR   InterPro; IPR039538; BetI_C.
DR   InterPro; IPR023772; DNA-bd_HTH_TetR-type_CS.
DR   InterPro; IPR009057; Homeodomain-like_sf.
DR   InterPro; IPR050109; HTH-type_TetR-like_transc_reg.
DR   InterPro; IPR001647; HTH_TetR.
DR   InterPro; IPR036271; Tet_transcr_reg_TetR-rel_C_sf.
DR   InterPro; IPR017757; Tscrpt_rep_BetI.
DR   NCBIfam; TIGR03384; betaine_BetI; 1.
DR   NCBIfam; NF001978; PRK00767.1; 1.
DR   PANTHER; PTHR30055:SF234; HTH-TYPE TRANSCRIPTIONAL REGULATOR BETI; 1.
DR   PANTHER; PTHR30055; HTH-TYPE TRANSCRIPTIONAL REGULATOR RUTR; 1.
DR   Pfam; PF13977; TetR_C_6; 1.
DR   Pfam; PF00440; TetR_N; 1.
DR   PRINTS; PR00455; HTHTETR.
DR   SUPFAM; SSF46689; Homeodomain-like; 1.
DR   SUPFAM; SSF48498; Tetracyclin repressor-like, C-terminal domain; 1.
DR   PROSITE; PS01081; HTH_TETR_1; 1.
DR   PROSITE; PS50977; HTH_TETR_2; 1.
PE   3: Inferred from homology;
KW   DNA-binding; Reference proteome; Repressor; Transcription;
KW   Transcription regulation.
FT   CHAIN           1..198
FT                   /note="HTH-type transcriptional regulator BetI"
FT                   /id="PRO_0000257727"
FT   DOMAIN          8..68
FT                   /note="HTH tetR-type"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00768"
FT   DNA_BIND        31..50
FT                   /note="H-T-H motif"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00768"
SQ   SEQUENCE   198 AA;  21678 MW;  4C8AEC3346CA6337 CRC64;
     MPKIGMEPLR RRELIDAAIR TIGQRGSLDV TVAQIAHEAG VSPALAHHYF GGKDKLILAT
     MRHLLRELGR DLNVAIKQAN TPHERIAAII AVNFSATQFA QETIAAWLTF YVHAQQSDDI
     KRLLRIYARR LHSNLVFALE QLTSRARANR IAEGAGAMID GLYIRHALGA DAPDAASAIA
     LVEDYIAIQL SGQPSAEN
//