CGSC Strain#: 4515
Strain Designation: χ342      Source of Strain: R. Curtiss
Other Designations: chi342
Sex: Hfr    Point of Origin#: 2A   Map Position: 12.20   Direction of Marker Transfer: Counterclockwise
Chromosomal Markers: proC29, λ^-, relA1, spoT1, bglF18(=IS103)::IS150, metB1
Strain Comments:

• Reference below is to bglF18.
• spoT1-- In addition to the 6bp insertion, there is a C to T transition resulting in an H257Y substitution.
• proC29 was formerly called pro3-52
• proC29 was formerly called proC52

References:

• Hall, B.G. 1988. Adaptive evolution that requires multiple spontaneous mutations. I. Mutations involving an insertion sequence. Genetics 120:887-897