CGSC Strain#: 7545
Strain Designation: W3110trpC9830      Source of Strain: C. Yanofsky
Other Designations: W3110trpC1117
Sex: F- Chromosomal Markers: λ^-, trpC9830, 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)
• trpC9830 was formerly called trpC1117(isol.no.)

References:

• Yanofsky, C, V Horn, M Bonner, S Stasiowski 1971. Polarity and enzyme functions in mutants of the first three genes of the tryptophan operon of Escherichia coli. Genetics 69(4):409-33.