CGSC Strain#: 5579
Strain Designation: K      Source of Strain: S.W. Glover
Sex: F- Chromosomal Markers: thr-1, leuB6(Am), fhuA21, lacY1, glnX44(AS), λ^-, rfbC1, rpsL198(strR), 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)
• 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
• strR = streptomycin resist.

References:

• Colson, C., S.W. Glover, N. Symonds, K.A. Stacey 1965. The location of the genes for host-controlled modification and restriction in Escherichia coli K-12. Genetics 52:1043-1050