CGSC Strain#: 5707
Strain Designation: AT12-55      Source of Strain: R. Lavalle'
Sex: Hfr    Point of Origin#: 12   Map Position: 68.80   Direction of Marker Transfer: Clockwise
Chromosomal Markers: thr-1, leuB6(Am), lacY1, glnX44(AS), λ^-, argG75, rpsL8, thiE1
Strain Comments:

• leuB6(Am)-- Suppressed by serU suppressor (supH)
• glnX44(AS)-- Mutation is a C to T transition at nucleotide 34 (3rd position of the anticodon)
• glnX44(AS) was formerly called su⁺_II
• glnX44(AS) was formerly called supE44
• glnX44(AS) was formerly called glnV44
• thiE1 was formerly called thi-1
• Am = amber(UAG) mutation
• AS = amber(UAG) suppressor

References:

• Reiner, A.M. 1969. Isolation and mapping of polynucleotide phosphorylase mutants of Escherichia coli. J.Bacteriol. 97:1431-1436