CGSC Strain#: 7440
Strain Designation: CAG12072      Source of Strain: C.A. Gross
Sex: F- Chromosomal Markers: λ^-, sfsB203::Tn10, rph-1
Strain Comments:

• sfsB203::Tn10-- : PCR analysis indicates that this insertion is in the sfsB (nlpA) gene at 71.8 min. (nucleotide 3,332,800) rather than at ca. 70.9, as previously indicated. (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)
• sfsB203::Tn10 was formerly called zha-203::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.