ID   RBCR_GUITH              Reviewed;         310 AA.
AC   O78432;
DT   15-DEC-1998, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1998, sequence version 1.
DT   25-MAY-2022, entry version 97.
DE   RecName: Full=Probable RuBisCO transcriptional regulator;
GN   Name=rbcR; Synonyms=ycf30;
OS   Guillardia theta (Cryptophyte) (Cryptomonas phi).
OG   Plastid; Chloroplast.
OC   Eukaryota; Cryptophyceae; Pyrenomonadales; Geminigeraceae; Guillardia.
OX   NCBI_TaxID=55529;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=9929392; DOI=10.1007/pl00006462;
RA   Douglas S.E., Penny S.L.;
RT   "The plastid genome of the cryptophyte alga, Guillardia theta: complete
RT   sequence and conserved synteny groups confirm its common ancestry with red
RT   algae.";
RL   J. Mol. Evol. 48:236-244(1999).
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; AF041468; AAC35617.1; -; Genomic_DNA.
DR   RefSeq; NP_050683.1; NC_000926.1.
DR   AlphaFoldDB; O78432; -.
DR   SMR; O78432; -.
DR   GeneID; 856973; -.
DR   HOGENOM; CLU_039613_6_1_1; -.
DR   OMA; HYEIDLG; -.
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..310
FT                   /note="Probable RuBisCO transcriptional regulator"
FT                   /id="PRO_0000105771"
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   310 AA;  34728 MW;  708366328B57BC03 CRC64;
     MTDLPFTLDQ LRILKAIASE GSFKKAAESL YISQPAVSLQ IQNLEKQLNI PIFDRANRKA
     VFTEEGDTLL RYGNRVLSLC DETCRAIEDL KTLQGGTLII GASQTTGTYL MPRLIGLFRH
     KYPQIAVQLQ VHSTRRVAWS VANGQVNLAV VGGKVPDELR SKLQITPYVD DELALILPKL
     HPFSKLEVIQ KEDLYRLRFI TLDKQSTIRR VIDTVLNEHG IDSARFKIEM ELNSVEAIKN
     AVQSGLGAAF VSISAIAKEL ELGLLHWVKI EGVVIKRTLS IITNPSRYQA KASEIFSKEI
     LTLFVTPYEI