W3110trpD9923      Source of Strain:
C. YanofskyOther Designations:
F- Chromosomal Markers: λ-
, rph-1Strain 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)
- trpD9923 was formerly called trpD562(isol.no.)
- 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.