CGSC Strain#: 4457
Strain Designation: JRG153      Source of Strain: J.R. Guest
Other Designations: Wsuc17
Sex: F- Chromosomal Markers: sucB9, λ^-, IN(rrnD-rrnE)1, iclR17(Const), trpR55
Strain Comments:

• IN(rrnD-rrnE)1-- Inverts the region between rrnD (73.74 min) and rrnE (90.66 min)
• trpR55-- is trpR2 of Yanofsky. It is a frameshift mutation. Trp levels are indistinguishable from those in trpR deletions or amber mutations (no functional repressor).
• Const = constitutive

References:

• Herbert, AA, JR Guest 1968. Biochemical and genetic studies with lysine+methionine mutants of Escherichia coli: lipoic acid and alpha-ketoglutarate dehydrogenase-less mutants. J. Gen. Microbiol. 53(3):363-81.