ID   CBBR_RHORU              Reviewed;         298 AA.
AC   P52595;
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 CbbR;
DE   AltName: Full=RuBisCO operon transcriptional regulator;
GN   Name=cbbR;
OS   Rhodospirillum rubrum.
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhodospirillales;
OC   Rhodospirillaceae; Rhodospirillum.
OX   NCBI_TaxID=1085;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=STR-2;
RX   PubMed=8349547; DOI=10.1128/jb.175.16.5066-5077.1993;
RA   Falcone D.L., Tabita F.R.;
RT   "Complementation analysis and regulation of CO2 fixation gene expression in
RT   a ribulose 1,5-bisphosphate carboxylase-oxygenase deletion strain of
RT   Rhodospirillum rubrum.";
RL   J. Bacteriol. 175:5066-5077(1993).
CC   -!- FUNCTION: Transcriptional activator for the cbb operon for RuBisCO and
CC       other Calvin cycle genes.
CC   -!- SIMILARITY: Belongs to the LysR transcriptional regulatory family.
CC       {ECO:0000305}.
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DR   EMBL; S64484; AAB27779.1; -; Genomic_DNA.
DR   PIR; B53305; B53305.
DR   AlphaFoldDB; P52595; -.
DR   SMR; P52595; -.
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..298
FT                   /note="HTH-type transcriptional regulator CbbR"
FT                   /id="PRO_0000105606"
FT   DOMAIN          7..64
FT                   /note="HTH lysR-type"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00253"
FT   DNA_BIND        24..43
FT                   /note="H-T-H motif"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00253"
SQ   SEQUENCE   298 AA;  32569 MW;  969A4B5F5139BFBA CRC64;
     MIRHAPRHLR QMQIFDAVAR HLSFSNAARE LGLTQPAVSL QIKQIEALAG LPLFEQMGRV
     LLLTQAGTIL LGHVRTILAA VTDADKAMDA LKGKRAGALR IGVVSTAKYF APRLLSVFTA
     GYPGVELGLT VANREQILGM IQENALDLFI MGRPPTEPAV RAELAPNPMV MVAASDHLVR
     RKLTFHDLSG ETFLMREPGS GTRILMEKLM TDHGVLPHRM IEMSSNETIK QAVMAGMGIS
     LLSRNTMSLE LSVGRLVILD VEGLPIQRDW YVVIREGKHL APVAEAMVAF LKAAARTC