CGSC Strain#: 347
Strain Designation: AB347      Source of Strain: A.L. Taylor
Sex: Hfr    Point of Origin#: 12   Map Position: 68.80   Direction of Marker Transfer: Clockwise
Chromosomal Markers: thr-1, ara-37, leuB6(Am), lacZ4, glnX44(AS), λ^-, aroC4, 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:

• Pittard, J, BJ Wallace 1966. Distribution and function of genes concerned with aromatic biosynthesis in Escherichia coli. J. Bacteriol. 91(4):1494-508.
• Huang, M, J Pittard 1967. Genetic analysis of mutant strains of Escherichia coli requiring p-aminobenzoic acid for growth. J. Bacteriol. 93(6):1938-42.