CGSC Strain#: 311
Strain Designation: W4881     
Source of Strain: A.L. Taylor
Other Designations: AB311
Sex: Hfr
Point of Origin#: 11
Map Position: 46.70
Direction of Marker Transfer: Counterclockwise
Chromosomal Markers: thr-1,
leuB6(Am)
,
lacZ4,
glnX44(AS)
,
λdef,
thiE1,
str-8Strain 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: - Taylor, AL, EA Adelberg 1960. Linkage Analysis with Very High Frequency Males of Escherichia Coli. Genetics 45(9):1233-43.
- McFall, E 1967. Dominance studies with stable merodiploids in the D-serine deaminase system of Escherichia coli K-12. J. Bacteriol. 94(6):1982-8.