si_0347 USS-DB-2 Response regulator, ompR family [USSDB2A] si_0347 USS-DB-2 Two-component system sensor protein [USSDB2B] si_0347 USS-DB-2 Efflux system membrane fusion protein [USSDB2C] si_0347 USS-DB-2 Multidrug efflux transporter [USSDB2D] si_0347 USS-DB-2 Outer membrane protein [USSDB2E]