CGSC Strain#: 253
Strain Designation: W208,SR     
Source of Strain: Paris Strain
Sex: F-
Chromosomal Markers: thr-1,
leuB6(Am)
,
lacZ4,
glnX44(AS)
,
rpsL8,
thiE1Strain 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
- thiE1 was formerly called thi-1
- Am = amber(UAG) mutation
- AS = amber(UAG) suppressor
References: - Adelberg, E.A., S.N. Burns 1960. Genetic variation in the sex factor of Escherichia coli. J.Bacteriol. 79:321-330