CGSC Strain#: 7678
Strain Designation: CY15077      Source of Strain: C. Yanofsky
Other Designations: MD33
Sex: F- Chromosomal Markers: λ^-, Δ(trpA-trpE)872, IN(rrnD-rrnE)1, rph-1, tnaA5
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
• tnaA5 was formerly called tna-2

References:

• Deeley, M.C., C. Yanofsky 1981. Nucleotide sequence of the structural gene for tryptophanase of Escherichia coli K-12. J.Bacteriol. 147:787-796