CGSC Strain#: 5634
Strain Designation: EW1b      Source of Strain: E. Whitney
Sex: F- Chromosomal Markers: lacY1 or lacZ4, tsx-64, glnX44(AS), gal-6, λ^-, hisG1, ΔtolC5, argG6, rpsL8 or rpsL104 or rpsL17, malT1(λ^R)
Strain Comments:

• glnX44(AS)-- Mutation is a C to T transition at nucleotide 34 (3rd position of the anticodon)
• hisG1-- This mutation has been reported as either a frameshift or a 36 nt deletion
• ΔtolC5-- : Deletion extends into tolC from proximal end.
• glnX44(AS) was formerly called su⁺_II
• glnX44(AS) was formerly called supE44
• glnX44(AS) was formerly called glnV44
• = strep-resistant
• AS = amber(UAG) suppressor
• LamR = Lambda-resistant

References:

• Whitney, EN 1971. The tolC locus in Escherichia coli K12. Genetics 67(1):39-53.