MRLESVAKFHSPKSPMMSDSPRATASDSLSGTDVMAAMGMAQSQAGFGMAAFCGKHELSQNDKQKAINYLMQFAHKVSGKYRGVAKLEGNTKAKVLQVLATFAYADYCRSAATPGARCRDCHGTGRAVDIAKTELWGRVVEKECGRCKGVGYSRMPASAAYRAVTMLIPNLTQPTWSRTVKPLYDALVVQCHKEESIADNILNAVTR REGQ_LAMBD Positively regulates expression of the phage early and late gene operons. Bacterial host RNA polymerase modified by antitermination proteins transcribes through termination sites that otherwise prevent expression of the regulated genes. Antitermination protein Q 207 Q