CGSC Strain#: 7679
Strain Designation: CY15602      Source of Strain: C. Yanofsky
Other Designations: W3110 ΔtrpEA2
Sex: F- Chromosomal Markers: λ^-, Δ(trpA-trpE)872, IN(rrnD-rrnE)1, rph-1
Strain Comments:

• IN(rrnD-rrnE)1-- Inverts the region between rrnD (73.74 min) and rrnE (90.66 min)
• 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)
• Δ(trpA-trpE)872 was formerly called trpEA2

References:

• Yanofsky, C, V Horn 1995. Bicyclomycin sensitivity and resistance affect Rho factor-mediated transcription termination in the tna operon of Escherichia coli. J. Bacteriol. 177(15):4451-6.