CGSC Strain#: 4233
Strain Designation: Hfr R5     
Source of Strain: P.R. Reeves
Other Designations: Reeves 5
Other Designations: CSH68
Sex: Hfr
Point of Origin#: 47
Map Position: 2.71
Direction of Marker Transfer: Counterclockwise
Chromosomal Markers: lacY1,
glnX44(AS)
,
gal-3,
rfbC1,
malT1(λ
R)
,
xyl-7,
mtlA2,
thiE1Strain Comments: - The gal-3 may consist of two mutations and one suppressor.
- 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
- rfbC1 was formerly called rfbD1
- thiE1 was formerly called thi-1
- xyl-7 was formerly called xylA7
- AS = amber(UAG) suppressor
- LamR = Lambda-resistant
References: - Low, K.B. 1968. Formation of merodiploids in matings with a class of Rec- recipient strains of Escherichia coli K12. Proc.Natl.Acad.Sci.USA 60:160-167