>3HEB_1|Chains A, B|Response regulator receiver domain protein (CheY)|Rhodospirillum rubrum (269796) MSLSVTIVMIEDDLGHARLIEKNIRRAGVNNEIIAFTDGTSALNYLFGDDKSGRVSAGRAQLVLLDLNLPDMTGIDILKLVKENPHTRRSPVVILTTTDDQREIQRCYDLGANVYITKPVNYENFANAIRQLGLFFSVMQVPETEGHHHHHH