ID   REGA_RHOCA              Reviewed;         184 AA.
AC   P42508;
DT   01-NOV-1995, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1995, sequence version 1.
DT   25-MAY-2022, entry version 111.
DE   RecName: Full=Photosynthetic apparatus regulatory protein RegA;
GN   Name=regA;
OS   Rhodobacter capsulatus (Rhodopseudomonas capsulata).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhodobacterales;
OC   Rhodobacteraceae; Rhodobacter.
OX   NCBI_TaxID=1061;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=1547494; DOI=10.1016/0092-8674(92)90037-d;
RA   Sganga M.W., Bauer C.E.;
RT   "Regulatory factors controlling photosynthetic reaction center and light-
RT   harvesting gene expression in Rhodobacter capsulatus.";
RL   Cell 68:945-954(1992).
CC   -!- FUNCTION: Member of the two-component regulatory system RegB/RegA.
CC       Involved in transactivating anaerobic expression of the photosynthetic
CC       apparatus. It is a transcriptional regulator that is responsible for
CC       activating expression of the puf, puh, and puc operons in response to a
CC       decrease in oxygen tension.
CC   -!- PTM: Phosphorylated by RegB. {ECO:0000305}.
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DR   EMBL; M64976; AAA26180.1; -; Genomic_DNA.
DR   PIR; A42219; A42219.
DR   RefSeq; WP_013065792.1; NZ_VIBE01000003.1.
DR   AlphaFoldDB; P42508; -.
DR   SMR; P42508; -.
DR   GeneID; 31489002; -.
DR   OMA; RRLEWEH; -.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0000156; F:phosphorelay response regulator activity; IMP:CACAO.
DR   InterPro; IPR011006; CheY-like_superfamily.
DR   InterPro; IPR001789; Sig_transdc_resp-reg_receiver.
DR   Pfam; PF00072; Response_reg; 1.
DR   SMART; SM00448; REC; 1.
DR   SUPFAM; SSF52172; SSF52172; 1.
DR   PROSITE; PS50110; RESPONSE_REGULATORY; 1.
PE   3: Inferred from homology;
KW   Activator; DNA-binding; Phosphoprotein; Transcription;
KW   Transcription regulation; Two-component regulatory system.
FT   CHAIN           1..184
FT                   /note="Photosynthetic apparatus regulatory protein RegA"
FT                   /id="PRO_0000081215"
FT   DOMAIN          14..128
FT                   /note="Response regulatory"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00169"
FT   MOD_RES         63
FT                   /note="4-aspartylphosphate"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00169"
SQ   SEQUENCE   184 AA;  20437 MW;  EB6D45004CFCBD31 CRC64;
     MAEEEFAELG SDRSLLLVDD DNAFLTRLAR AMEKRGFQTE IAETVSAGKA IVQNRAPAYA
     VIDLRLEDGN GLEVVEALRE RRPEARIVVL TGYGAIATAV AAVKMGATDY LSKPADANDI
     TNALLAKGEA LPPPPENPMS ADRVRWEHIQ RVYELCDRNV SETARRLNMH RRTLQRILAK
     RSPR