ID   CYSB_THIRO              Reviewed;         136 AA.
AC   P52675;
DT   01-OCT-1996, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-1996, sequence version 1.
DT   25-MAY-2022, entry version 71.
DE   RecName: Full=HTH-type transcriptional regulator CysB;
DE   AltName: Full=Cys regulon transcriptional activator;
DE   Flags: Fragment;
GN   Name=cysB;
OS   Thiocapsa roseopersicina.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Chromatiales; Chromatiaceae;
OC   Thiocapsa.
OX   NCBI_TaxID=1058;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=DSM 219 / 6311;
RX   PubMed=8695637; DOI=10.1016/0167-4838(96)00066-0;
RA   Bruehl A., Haverkamp T., Gisselmann G., Schwenn J.D.;
RT   "A cDNA clone from Arabidopsis thaliana encoding plastidic
RT   ferredoxin:sulfite reductase.";
RL   Biochim. Biophys. Acta 1295:119-124(1996).
CC   -!- FUNCTION: This protein is a positive regulator of gene expression for
CC       the cysteine regulon. {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the LysR transcriptional regulatory family.
CC       {ECO:0000305}.
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DR   EMBL; Z23169; CAA80689.1; -; Genomic_DNA.
DR   PIR; S34192; S34192.
DR   AlphaFoldDB; P52675; -.
DR   SMR; P52675; -.
DR   STRING; 1058.SAMN05421783_107101; -.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0003700; F:DNA-binding transcription factor activity; IEA:InterPro.
DR   Gene3D; 1.10.10.10; -; 1.
DR   InterPro; IPR005119; LysR_subst-bd.
DR   InterPro; IPR000847; Tscrpt_reg_HTH_LysR.
DR   InterPro; IPR036388; WH-like_DNA-bd_sf.
DR   InterPro; IPR036390; WH_DNA-bd_sf.
DR   Pfam; PF00126; HTH_1; 1.
DR   Pfam; PF03466; LysR_substrate; 1.
DR   PRINTS; PR00039; HTHLYSR.
DR   SUPFAM; SSF46785; SSF46785; 1.
DR   PROSITE; PS50931; HTH_LYSR; 1.
PE   3: Inferred from homology;
KW   Activator; DNA-binding; Transcription; Transcription regulation.
FT   CHAIN           1..>136
FT                   /note="HTH-type transcriptional regulator CysB"
FT                   /id="PRO_0000105619"
FT   DOMAIN          1..59
FT                   /note="HTH lysR-type"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00253"
FT   DNA_BIND        19..38
FT                   /note="H-T-H motif"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00253"
FT   NON_TER         136
SQ   SEQUENCE   136 AA;  15328 MW;  262680ED1B4CFBE0 CRC64;
     MDVRQLRSLV TLVEVRFSVS RAAECLHLVQ SAVTQHLKQL EAELGTRLFV RHGKRLVGLT
     EVGEQVLRHA CEALRQTGNI VAVGREHLEE ERRRIRLGAT HTQARYVLPP VIRRFAAAYP
     AVELQIHQGT PGQLVD