CGSC Strain#: 7425
Strain Designation: CAG12173      Source of Strain: C.A. Gross
Sex: F- Chromosomal Markers: λ^-, cysI95::Tn10, rph-1
Strain Comments:

• cysI95::Tn10-- shown by PCR to be inserted after nucleotide 2,886,785 (minute 62.226) in cysI rather than cysC (Nichols et al. 1998).
• 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)
• cysI95::Tn10 was formerly called cysC95::Tn10
• = tetracycline resistant

References:

• Singer, M., T.A. Baker, G. Schnitzler, S.M. Deischel, M. Goel, W.F. Dove, K.J. Jaacks, A.D. Grossman, J.. Erickson, C.A. Gross 1989. A collection of strains containing genetically linked alternating antibiotic resistance elements for genetic mapping of
• Nichols, BP, O Shafiq, V Meiners 1998. Sequence analysis of Tn10 insertion sites in a collection of Escherichia coli strains used for genetic mapping and strain construction. J. Bacteriol. 180(23):6408-11.