CGSC Strain#: 8252
Strain Designation: NCM520      Source of Strain: N. Majdalani
Sex: F- Chromosomal Markers: Δ(lacA-lacZ)880(::FRT), λ^-, rph-1
Strain Comments:

• Δ(lacA-lacZ)880(::FRT)-- is the DE(lacA-lacZ)879::kan deletion with the kan cassette removed
• rph-1-- is a 1 bp deletion that results in frameshift over last 15 codons and has polar effect on pyrE leading to suboptimal pyrimidine levels on minimal medium.(Jensen 1993 JBact.175:3401)
• ::FRT = Flp Recombinase Target

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