CGSC Strain#: 12389
Strain Designation: STL13764      Source of Strain: S.T. Lovett
Sex: F- Chromosomal Markers: lacZ4818, mhpC281::Tn10, λ^-, rph-1
Strain Comments:

• lacZ4818-- is a 2 basepair deletion of a CG residue pair causing a frameshift mutation at base 1518 in the lacZ gene.
• mhpC281::Tn10-- cotransduces 80% with lac.
• 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)
• lacZ4818 was formerly called lacZ(+2CG1518)
• mhpC281::Tn10 was formerly called zah281::Tn10
• = tetracycline resistant

References:

• Seier, T, DR Padgett, G Zilberberg, VA Sutera, N Toha, ST Lovett 2011. Insights into mutagenesis using Escherichia coli chromosomal lacZ strains that enable detection of a wide spectrum of mutational events. Genetics 188(2):247-62.