CGSC Strain#: 7707
Strain Designation: AW405      Source of Strain: J. Adler
Sex: F- Chromosomal Markers: thr-1, araC14, leuB6(Am), fhuA31, lacY1, tsx-78, glnX44(AS), galK2(Oc), galT22, λ^-, hisG4(Oc), rfbC1, mgl-51, rpsL136(strR), xylA5, mtl-1, 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)
• 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.
• 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
• rfbC1 was formerly called rfbD1
• thiE1 was formerly called thi-1
• Am = amber(UAG) mutation
• AS = amber(UAG) suppressor
• Oc = ochre(UAA) mutation
• strR = streptomycin resist.

References:

• Hazelbauer, GL, RE Mesibov, J Adler 1969. Escherichia coli mutants defective in chemotaxis toward specific chemicals. Proc. Natl. Acad. Sci. U.S.A. 64(4):1300-7.
• Parkinson, J.S. 1980. Novel mutations affecting a signaling component for chemotaxis of Escherichia coli. J.Bacteriol. 142:953-961