CGSC Strain#: 5419
Strain Designation: GUC49     
Source of Strain: S.K. Guterman
Sex: F-
Chromosomal Markers: thr-1,
leuB6(Am)
,
fhuA21,
lacY1,
glnX44(AS)
,
rfbC1,
thiE1,
CbiStrain Comments: - Does not excrete substantially more enterochelin than does parent strain C600. CBI = colicin B insensitive = not exb-.
- leuB6(Am)-- Suppressed by serU suppressor (supH)
- glnX44(AS)-- Mutation is a C to T transition at nucleotide 34 (3rd position of the anticodon)
- Cbi-- - Colicin B insensitive phenotype
- 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
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