CGSC Strain#: 7243
Strain Designation: S\O5052      Source of Strain: P. Nygaard
Sex: F- Chromosomal Markers: lacZ608(Am), purR96, rpsL999(strR), thi-
Strain Comments:

• lacZ608(Am)-- is an amber mutation (Newton et al. 1965 J. Mol. Biol. 14:290), aka lacZ^-NG608 by Zinder, in segment 10 of the lacZ gene (Zipser et al. 1970).
• Am = amber(UAG) mutation
• strR = streptomycin resist.

References:

• Kilstrup, M., L.M. Meng, J. Neuhard, P. Nygaard 1989. Genetic evidence for a repressor of synthesis of cytosine deaminase and purine biosynthesis enzymes in Escherichia coli. J.Bacteriol. 171:2124-2127