>4RQ9_1|Chain A|Photoreceptor-histidine kinase BphP|Stigmatella aurantiaca (378806) MGSSHHHHHHSSGLVPRGSHMSTEASRSGKQEVDLTNCDREPIHIPGAIQPHGVLLVLSEPGLVLTHASENAPAVLGNSAEQLLGAPLGHFIEPSVREPLEADLRSARLKQLNPLKVVWRVDGVDRFFDGIAHRHQGRLILELEPSSHREAVPFLSFFHAVRDGLSRLRDARDLQELCEAVVQEVRGLTGFDRAIIYRFDAEWNGSVIAEARDARADPYLGLHFPASDIPRQARELYQLNWLRIIPTIDYQPARVRALPGHGEPLDLSFSVLRSVSPIHLEYLHNMGVQASMSISLMKDGKLWGLISCHQVSGTRYVPYEVRTACEFLGEVMSSLLAAKEGNEDYDQR