Forward primers used to generate these mutagenized ɛy promoter reporter constructs include: MHB1661, 5′CCGCTCGAGAATGCAGTGCCAAGGGTCAGAACATTGTCTGCGAAG3′ (−63 to −19); MHB1662, 5′CCGCTCGAGAATGCAGAACAAAGGGTCAGATGAGTGTCTGCGAAGAA3′ (−63 to −16); and MHB1663, 5′CCGCTCGAGAATGCATGCCAAGGGTCAGATGAGTGTCTGCGAAGAA 3′ (−63 to −18).