Hybrid lambda/lac promoters that are repressible by lac repressor and Cro. Oligos ordered from IDT 1/20/05 Notes: Sph lambda PR lacO Xba btm Can be used to replace T7 promoter in pET vectors and directly in pAH125 The HincII site in the PR promoter can be used as a diagnostic. HincII gty|rac: 9 [ -35] lambda PR [ -10] cgcgtgTTGACTattttacctctggcggtGATAATggttgaattgtgagcggataacaattcccct gtacgcgcacaactgataaaATGGAGaccgcCACTATtaccaacTTAACACTCGCCTATTGTTAAggggagatc gcatg|c SphI [---lambdaoR1---] [-------lac O-------]XbaI t|ctaga For Uri Alon vectors (GFP and Lux) g|gatcc [ -35] lambda PR [ -10] c|tcgag gatccgcgtgTTGACTattttacctc|tggcggtGATAATggttgaattgtgagcggataacaattcccc gcgcacaactgataaaATGGAGaccgcCACTATtaccaacTTAACAC|TCGCCTATTGTTAAggggagct cctag|g BamHI XhoI gagct|c |------T1 - 29mer------------| |-----------T2 - 40mer-------------------| g|gatcc [ -35] lambda PR [ -10] c|tcgag 5'gatccgcgtgTTGACTatttTACCTCtgg cggtGATAATggttgaattg-tgagcggataacaattcccc 3' 3' gcgcacaactgataaaATGGAGacc-gcCACTATtaccaacTTAAC ACTCGCCTATTGTTAAggggagct 5' cctag|g BamHI XhoI gagct|c |----------------B1-45mer---------------------| |-------B2-24mer--------| OR1 gatccgcgtgTTGACTatttTACCTCtgg gcgcacaactgataaaATGGAGacc-gcCACTATtaccaacTTAAC consensus gatccgcgtgTTGACTatttTAtCaCtgg gcgcacaactgataaaATaGtGacc-gcCACTATtaccaacTTAAC trashed gatccgcgtgTTGACTatttTcCCTgtgg gcgcacaactgataaaAgGGAcacc-gcCACTATtaccaacTTAAC T1-29 gatccgcgtgTTGACTatttTACCTCtgg T2-40 cggtGATAATggttgaattgtgagcggataacaattcccc B1-45 CAATTcaaccatTATCACcgccaGAGGTAaaatagtcaacacgcg B2-24 tcgaggggAATTGTTATCCGCTCA T1c gatccgcgtgTTGACTatttTAtCaCtgg T1t gatccgcgtgTTGACTatttTcCCTgtgg B1t CAATTcaaccatTATCACcgccaGtGaTAaaatagtcaacacgcg B1c CAATTcaaccatTATCACcgccacAGGgAaaatagtcaacacgcg 3-29mers, 3-45mers, 1-40mer, 1-24mer 3*(29 + 45) + 40 + 24 = 286 * .35 = 100.1 286 * .55 = 157.3