CGSC Strain#: 5026
Strain Designation: ES2     
Source of Strain: E. Seeberg
Sex: F-
Chromosomal Markers: lacZ53(Am)
,
λ-,
IN(rrnD-rrnE)1,
rpsL151(strR)
,
polA12(ts)
,
rha-5,
uvrA6Strain Comments: - lacZ53(Am)-- is the Paris lac-Y14 amber.
- IN(rrnD-rrnE)1-- Inverts the region between rrnD (73.74 min) and rrnE (90.66 min)
- polA12(ts)-- : sensitive to temperature and to low salt; altered pH optimum. Normal Exo levels. Totally defective in nick translation at 42C. recA56 polA12 are ts for growth.
- Am = amber(UAG) mutation
- strR = streptomycin resist.
- ts = Temperature Sensitive
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