CGSC Strain#: 803
Strain Designation: W2244      Source of Strain: J. Lederberg
Sex: F+ Chromosomal Markers: ΔlacZ39, rpsL110(strR)
Strain Comments:

• ΔlacZ39-- is a deletion of ca. 1/3 of the lacZ gene.
• strR = streptomycin resist.

References:

• Cook, A., J. Lederberg 1962. Recombination studies of lactose nonfermenting mutants of Escherichia coli K12. Genetics 47:1335-1353