CGSC Strain#: 903
Strain Designation: CS-3      Source of Strain: C. Spotts
Sex: F- Chromosomal Markers: rpsL39(StrD), malT1(λ^R), thiE1, pur-33
Strain Comments:

• CS-3 is a pur^- derivative of strain CS-1, described in the paper cited below. Strains CS-1 and CS-2 have both been lost.
• rpsL39(StrD)-- is a mutation to streptomycin-dependence.
• thiE1 was formerly called thi-1
• LamR = Lambda-resistant
• StrD = streptomycin dependent

References:

• SPOTTS, CR 1962. Physiological and biochemical studies on streptomycin dependence in Escherichia coli. J. Gen. Microbiol. 28:347-65.