CGSC Strain#: 4520
Strain Designation: BE280      Source of Strain: N. Otsuji
Other Designations: AT2614
Sex: F- Chromosomal Markers: lacZ13(Oc), lacI22, trp-37, rpsL106(strR), xylA13, tnaA4, phoS-3, ilv-280
Strain Comments:

• lacZ13(Oc)-- is lacZ₂ of Jacob, originating in Paris strain 3.320. It is an ochre, polar mutation.
• lacI22 was formerly called lacI3
• lacI22 was formerly called lac_i3^-
• Oc = ochre(UAA) mutation
• strR = streptomycin resist.

References:

• Taylor, A.L., C.D. Trotter 1967. Revised linkage map of Escherichia coli. Bacteriol.Rev. 31:332-353
• Aono, H., N. Otsuji 1968. Genetic mapping of regulator gene phoS for alkaline phosphatase in Escherichia coli. J.Bacteriol. 95:1182-1183