>6IS2_1|Chains A, B, C, D|Response regulator ArlR|Staphylococcus aureus (strain bovine RF122 / ET3-1) (273036) MGHHHHHHTQILIVEDEQNLARFLELELTHENYNVDTEYDGQDGLDKALSHYYDLIILDLMLPSINGLEICRKIRQQQSTPIIIITAKSDTYDKVAGLDYGADDYIVKPFDIEELLARIRAILRRQPQ