CGSC Strain#: 5907
Strain Designation: EB33      Source of Strain: E.A. Birge
Sex: F- Chromosomal Markers: leuB6(Am), lacY1, glnX44(AS), gal-6, λ^-, hisG1, aroE24, rpsL253(strR), xyl-7, mtlA2, metB1
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)
• hisG1-- This mutation has been reported as either a frameshift or a 36 nt deletion
• glnX44(AS) was formerly called su⁺_II
• glnX44(AS) was formerly called supE44
• glnX44(AS) was formerly called glnV44
• xyl-7 was formerly called xylA7
• Am = amber(UAG) mutation
• AS = amber(UAG) suppressor
• strR = streptomycin resist.

References:

• Birge, EA, CG Kurland 1970. Reversion of a streptomycin-dependent strain of Escherichia coli. Mol. Gen. Genet. 109(4):356-69.