CGSC Strain#: 6201
Strain Designation: KL693      Source of Strain: M.C. Cappello
Sex: F- Chromosomal Markers: araC14, Δ(gpt-lac)5, λ^-, hisF860(Stable), cysJ43, thyA54, rpsE2115(SpcR), rpsL109(strR), xylA5, mtl-1, metE70, thiE1, malE-50, deo-45, λ^R
Strain Comments:

• The fertility of this strain is slightly low.
• Δ(gpt-lac)5-- is the deletion Δ( pro-lac)_X111 of Jacob and originated in the strain Hfr 3000 X111.
• cysJ43-- - the cys allele was formerly thought to be in cysC.
• thyA54-- Strains with this marker must have their medium supplemented with thymine (25ug/ml). This is true even for rich medium such as LB. Otherwise thymine starvation can lead to thymineless death.
• λ^R-- Lambda resistant, locus unknown.
• thiE1 was formerly called thi-1
• SpcR = spectinomycin resistant
• Stable = stable, non-reverting
• strR = streptomycin resist.

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