CGSC Strain#: 2200
Strain Designation: AB2200      Source of Strain: G. Eggertsson
Sex: F- Chromosomal Markers: araBAD-9, fhuA1, lacZ13(Oc), tsx-3, λ^-, trpE3(Oc), hisG4(Oc), rfbC1, rpsL8 or rplL9(L?), malT1(λ^R), mtl-1, metE46, thiE1
Strain Comments:

• lacZ13 is an ochre mutation. This strain is suppressor-free.
• lacZ13(Oc)-- is lacZ₂ of Jacob, originating in Paris strain 3.320. It is an ochre, polar mutation.
• rfbC1 was formerly called rfbD1
• thiE1 was formerly called thi-1
• LamR = Lambda-resistant
• Oc = ochre(UAA) mutation
• strR = streptomycin resist.

References:

• Wechsler, J.A. 1969. Antipolarity in the ilv operon of Escherichia coli K-12. J.Bacteriol. 98:1179-1194
• Marsh, NJ, DE Duggan 1972. Ordering of mutant sites in the isoleucine-valine genes of Escherichia coli by use of merogenotes derived from F 14 : a new procedure for fine-structure mapping. J. Bacteriol. 109(2):730-40.