CGSC Strain#: 12340
Strain Designation: SQ40      Source of Strain: Quan
Sex: F- Chromosomal Markers: λ^-, Δ(rrfG-rrsG)791(::FRT), rph-1, Δ(rrsE-rrfE)789(::FRT)
Strain Comments:

• 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)

References:

• Quan, S, O Skovgaard, CL Squires 2010. Escherichia coli Ribosomal RNA deletion strain. unpublished results :0-0.