CGSC Strain#: 7100
Strain Designation: GC4468      Source of Strain: R. D'Ari
Other Designations: QC771
Sex: F- Chromosomal Markers: Δ(argF-lac)169, λ^-, IN(rrnD-rrnE)1, rpsL179(strR)
Strain Comments:

• Δ(argF-lac)169-- extends from mmuP through orfs preceding argF, through lac to mhpD, literally Δ(mmuP-mhpD)169. (Peters et al. 2003 JB 185:2017)
• Δ(argF-lac)169-- from strain Hfr3000 U169 was initially called ΔlacU169 and described as a lacZY mutation until found to include argF and lacI.
• IN(rrnD-rrnE)1-- Inverts the region between rrnD (73.74 min) and rrnE (90.66 min)
• strR = streptomycin resist.

References:

• Carlioz, A., D. Touati 1986. Isolation of superoxide dismutase mutants in Escherichia coli: is superoxide dismutase necessary for aerobic life?. EMBO J. 5:623-630