CGSC Strain#: 7602
Strain Designation: YYC912      Source of Strain: Cronan & Chang
Sex: F- Chromosomal Markers: Δ(argF-lac)169, λ^-, poxB15::lacZ::CmR, IN(rrnD-rrnE)1, rph-1, tnaA5
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)
• 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)
• tnaA5 was formerly called tna-2
• = chloramphenicol resistant

References:

• Chang, Y.-Y., A.Y. Wang, J.E. Cronan 1994. Expression of Escherichia coli pyruvate oxidase (PoxB) depends on the sigma factor encoded by the rpoS(katF) gene. Mol.Microbiol. 11:1019-1028