CGSC Strain#: 6988
Strain Designation: RL22      Source of Strain: A.L. Fimmel
Sex: Hfr    Point of Origin#: 1   Map Position: 96.80   Direction of Marker Transfer: Clockwise
Chromosomal Markers: Δ(galK-uvrB)45, Δ(cysH-cysJ)264, relA1, spoT1, thiE1
Strain Comments:

• spoT1-- In addition to the 6bp insertion, there is a C to T transition resulting in an H257Y substitution.
• thiE1 was formerly called thi-1

References:

• Fimmel, AL, RE Loughlin 1977. Isolation of a lambdadcys transducing bacteriophage and its use in determining the regulation of cysteine messenger ribonucleic acid synthesis in Escherichia coli K-12. J. Bacteriol. 132(3):757-63.