CGSC Strain#: 5415
Strain Designation: GUC6      Source of Strain: S.K. Guterman
Sex: F- Chromosomal Markers: thr-1, leuB6(Am), fhuA21, lacY1, glnX44(AS), λ^-, e14-, tonB50, rfbC1, glpR200(glp^c), thiE1
Strain Comments:

• tonB50 is referred to as exbA6 in the papers below.
• leuB6(Am)-- Suppressed by serU suppressor (supH)
• glnX44(AS)-- Mutation is a C to T transition at nucleotide 34 (3rd position of the anticodon)
• e14--- : Loss of the e14 element makes the strain McrA^-.
• 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
• glp^c = constitutive expr.glp regulon

References:

• Guterman, SK 1973. Colicin B: mode of action and inhibition by enterochelin. J. Bacteriol. 114(3):1217-24.
• Guterman, S.K., L. Dann 1973. Excretion of enterochelin by exbA and exbB mutants of Escherichia coli. J.Bacteriol. 114:1225-1230