CGSC Strain#: 3512
Strain Designation: JW13      Source of Strain: J.A. Wechsler
Sex: F- Chromosomal Markers: araBAD-9, fhuA1, Δ(gpt-proA)62, lacY1, lacZ4, tsx-3, glnX44(AS), galK2(Oc), trpE3(Oc), hisG4(Oc), rpsL8, malT1(λ^R), mtl-1, rplL9(L?), thiE1
Strain Comments:

• glnX44(AS)-- Mutation is a C to T transition at nucleotide 34 (3rd position of the anticodon)
• galK2(Oc)-- is a GAA(glu) to TAA(ochre) mutation, residue 134. Oller et al.1993. Apparently non-suppressible, since all revertants found were at the ochre site.
• Δ(gpt-proA)62 was formerly called proA2
• galK2(Oc) was formerly called gal₂
• 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
• AS = amber(UAG) suppressor
• L? = assignment uncertain
• LamR = Lambda-resistant
• Oc = ochre(UAA) mutation

References:

• Wechsler, J.A. 1969. Antipolarity in the ilv operon of Escherichia coli K-12. J.Bacteriol. 98:1179-1194