ID   RBCR_CYAPA              Reviewed;         324 AA.
AC   P48271;
DT   01-FEB-1996, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1996, sequence version 1.
DT   25-MAY-2022, entry version 82.
DE   RecName: Full=Probable RuBisCO transcriptional regulator;
GN   Name=rbcR; Synonyms=ycf30;
OS   Cyanophora paradoxa.
OG   Plastid; Cyanelle.
OC   Eukaryota; Glaucocystophyceae; Cyanophoraceae; Cyanophora.
OX   NCBI_TaxID=2762;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=UTEX LB 555 / Pringsheim;
RA   Stirewalt V.L., Michalowski C.B., Loeffelhardt W., Bohnert H.J.,
RA   Bryant D.A.;
RT   "Nucleotide sequence of the cyanelle DNA from Cyanophora paradoxa.";
RL   Plant Mol. Biol. Rep. 13:327-332(1995).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=UTEX LB 555 / Pringsheim;
RA   Loeffelhardt W., Stirewalt V.L., Michalowski C.B., Annarella M.,
RA   Farley J.Y., Schluchter W.M., Chung S., Newmann-Spallart C., Steiner J.M.,
RA   Jakowitsch J., Bohnert H.J., Bryant D.A.;
RT   "The complete sequence of the cyanelle genome of Cyanophora paradoxa: the
RT   genetic complexity of a primitive plastid.";
RL   (In) Schenk H.E.A., Herrmann R., Jeon K.W., Mueller N.E., Schwemmler W.
RL   (eds.);
RL   Eukaryotism and symbiosis, pp.40-48, Springer-Verlag, Heidelberg (1997).
CC   -!- FUNCTION: Trans-acting transcriptional regulator of RuBisCO genes (rbcL
CC       and rbcS) expression. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Plastid, cyanelle.
CC   -!- SIMILARITY: Belongs to the LysR transcriptional regulatory family.
CC       {ECO:0000305}.
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DR   EMBL; U30821; AAA81313.1; -; Genomic_DNA.
DR   PIR; T06970; T06970.
DR   RefSeq; NP_043282.1; NC_001675.1.
DR   AlphaFoldDB; P48271; -.
DR   SMR; P48271; -.
DR   PRIDE; P48271; -.
DR   GeneID; 801556; -.
DR   GO; GO:0009842; C:cyanelle; 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   Cyanelle; DNA-binding; Plastid; Transcription; Transcription regulation.
FT   CHAIN           1..324
FT                   /note="Probable RuBisCO transcriptional regulator"
FT                   /id="PRO_0000105769"
FT   DOMAIN          8..65
FT                   /note="HTH lysR-type"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00253"
FT   DNA_BIND        25..44
FT                   /note="H-T-H motif"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00253"
SQ   SEQUENCE   324 AA;  36332 MW;  99A9CAC3DC452334 CRC64;
     MKVEELPFSL EQLRILKAIA TEGSFKKAAE SLYMTQPAIS LQIQTLEKKL NIALFDRSGR
     RALMTEAGHL LLRYGDCILA LCEETCHALE DLRNLQGGTL VIGASQTTGT YLMPRLIGLF
     RQRYPQVTVK LHVHSTRRIS WNIANGQVDL AVIGGEVPHE LQESLTITPY AEDELVLILP
     KSHPFAKLES IQKEDLYRLK FIALDAQSAI RKVIDKVLAQ NGIDSNLFRV EMELNSIESI
     KNAVQSGLGA AFVSVSAIAK ELELGILHWC RIENITIKRM LSIITNPNRY HSQAARIFSE
     EILTMFSLQS PEVKKRALSI IQNT