CGSC Strain#: 7263
Strain Designation: DM828      Source of Strain: D.W. Mount
Other Designations: PC0297
Sex: F- Chromosomal Markers: thr-20, leu-32, proA35, lacY1, tsx-70, glnX44(AS), gal-6, λ^-, rpsL125(strR), xyl-7, mtlA2, recG162, purA45
Strain Comments:

• This appears to be duplicate of CGSC 7263. The strain came originally from the DeHaan lab. This culture came via David Mount's laboratory.
• 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
• xyl-7 was formerly called xylA7
• AS = amber(UAG) suppressor
• strR = streptomycin resist.

References:

• Storm, P.K., W.P.M. Hoekstra, P.G. de Haan, C. Verhoef 1971. Genetic recombination in Escherichia coli. IV. Isolation and characterization of recombination-deficient mutants of Escherichia coli K12. Mutat.Res. 13:9-17