Protein
Sensor histidine kinase RegB
Organism
Rhodobacter sphaeroides (strain ATCC 17023 / 2.4.1 / NCIB 8253 / DSM 158)
Function
Member of the two-component regulatory system RegB/RegA. Involved in the positive regulation of photosynthesis gene expression in response to anaerobiosis. Also involved in positive regulation of the cbbI and cbbII Calvin cycle CO2 fixation operons, as well as in regulation of expression of genes involved in alternative CO2 fixation pathways. Phosphorylates RegA/PrrA.
Sequence
MILGPDGILNRDTRGDWVRLRTLILLRWMAVAGQLAAIVVTDWYLGVRLPMGLCFMAVGASVIANVIATFVFPQNRRLTEFQALMILLFDLTQLSFLLFLTGGLTNPFALLILAPVTISALALELRTTVILGAIAIGLLTFTAYFHLPLILADGSSLSVPRMFEFGFWLAIVIGILFLGLYSRRVAIEIRSMSDALLATQMALDREQKLTDLGGVVAAAAHELGTPLATIKLVSSELAEELSEQPALRDDAELIREQADRCRDILRSMGRAGKDDLQMRQAPLGEVLREAAEPHVGRGKRVEFDLYPSRGGDERQPVILRRPEVIHGLRNLIQNAVDFARSTVWIDGEWTGDRIAIRIVDDGEGYPPAIIGRIGDPFVRQRRAEESQSRRPGYEGMGLGLFIAKTLLERSGAELSFANAADPFLRSHERPERCGAIVEVIWPVDRLVVVRNAPLGENVLIQT