Protein
AhcY transcriptional activator HvrB
Organism
Rhodobacter capsulatus (strain ATCC BAA-309 / NBRC 16581 / SB1003)
Function
Functions as a low-light activator of ahcY expression (gene for S-adenosyl-L-homocysteine hydrolase) and as a high-light activator of an uncharacterized 21.6 kDa protein in the ahcY-hvrB intergenic region (orf5). It is also a negative regulator of its own expression.
Similarity
Belongs to the LysR transcriptional regulatory family.
Sequence
MSEIDWRKMPPLTALRAFAATASEGGFSAAARKLNVTHAAIAQQVRALEADLDVPLVWRDGKHLHLTPEGERFAKALADGFSMIQSAADMLRADTSEKALTVTVPPVFASEWLMPRLARFWKKHPDIPLSLLPDARLVDLKEIGANIGIRFGVGKWPGVISVFLTAAPQVVVAAPELLGGRKKLSLREMAMLPWVREGDWPEQMQLLESMGLVPAALKFVDFPNEELALAAAREGIGLHLETEALIVEDLKLGWLVKIHELTEESLGYYIVRPPGRLNPAAKIFIDWLKAEA