ID   RBCR_CYACA              Reviewed;         317 AA.
AC   O19892;
DT   20-JUN-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-JAN-1998, sequence version 1.
DT   25-MAY-2022, entry version 89.
DE   RecName: Full=Probable RuBisCO transcriptional regulator;
GN   Name=rbcR; Synonyms=ycf30, ycf7;
OS   Cyanidium caldarium (Red alga).
OG   Plastid; Chloroplast.
OC   Eukaryota; Rhodophyta; Bangiophyceae; Cyanidiales; Cyanidiaceae; Cyanidium.
OX   NCBI_TaxID=2771;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=RK-1;
RX   PubMed=11040290; DOI=10.1007/s002390010101;
RA   Gloeckner G., Rosenthal A., Valentin K.-U.;
RT   "The structure and gene repertoire of an ancient red algal plastid
RT   genome.";
RL   J. Mol. Evol. 51:382-390(2000).
CC   -!- FUNCTION: Trans-acting transcriptional regulator of RuBisCO genes (rbcL
CC       and rbcS) expression. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast.
CC   -!- SIMILARITY: Belongs to the LysR transcriptional regulatory family.
CC       {ECO:0000305}.
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DR   EMBL; AF022186; AAB82697.1; -; Genomic_DNA.
DR   PIR; T11960; T11960.
DR   RefSeq; NP_045064.1; NC_001840.1.
DR   AlphaFoldDB; O19892; -.
DR   SMR; O19892; -.
DR   GeneID; 800283; -.
DR   GO; GO:0009507; C:chloroplast; IEA:UniProtKB-SubCell.
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   Chloroplast; DNA-binding; Plastid; Transcription; Transcription regulation.
FT   CHAIN           1..317
FT                   /note="Probable RuBisCO transcriptional regulator"
FT                   /id="PRO_0000105770"
FT   DOMAIN          6..63
FT                   /note="HTH lysR-type"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00253"
FT   DNA_BIND        23..42
FT                   /note="H-T-H motif"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00253"
SQ   SEQUENCE   317 AA;  35747 MW;  C81489C529464FFF CRC64;
     MTDLPFTLDQ LRILRAILIQ GSFKKAATSL YISQPAVSSH VHNIEKQLNI QLFDRSHRNA
     QLTEAGQLLL KYGGRILALC EETCRALEDL QNLQCGNLII GASQTTGTYL MPKLIGLFRQ
     KYPQISVQLQ VHSTRRISWS VANGQLDLAI IGGEVPKELT EILEVRNFVE DELTLILPPS
     HPFSKFSCIQ KEDLYRLRFI ALDKNSTIRK VIDKILNRNG IDSSRLKTEM ELSSIEAIKN
     AVQSGLGASF VSISAIDKEL KLQLLNRVNI DKIKIKRMLS IITNYSRYRS KASETFCHEI
     LGLLVNLPFK NAPSTEK