CGSC Strain#: 7159
Strain Designation: LCB90      Source of Strain: M.C. Pascal
Sex: F- Chromosomal Markers: thr-1, leuB6(Am), fhuA21, glnX44(AS), e14-, ana-1, ackB50, nirG0
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)
• e14--- : Loss of the e14 element makes the strain McrA^-.
• ana-1-- : probably in regulatory region of adhE
• glnX44(AS) was formerly called glnV44
• glnX44(AS) was formerly called su⁺_II
• glnX44(AS) was formerly called supE44
• Am = amber(UAG) mutation
• AS = amber(UAG) suppressor

References:

• Pascal, M.C., M. Chippaux, A. Abou-Jaoude, H.P. Blaschkowski, J. Knappe 1981. Mutants of Escherichia coli K12 with defects in anaerobic pyruvate metabolism. J.Gen.Microbiol. 124:35-42