CGSC Strain#: 5231
Strain Designation: JC5088     
Source of Strain: A.J. Clark
Sex: Hfr
Point of Origin#: 45
Map Position: 65.00
Direction of Marker Transfer: Counterclockwise
Chromosomal Markers: thr-300,
λ-,
recA56,
relA1,
spoT1,
ilv-318,
thiE1,
spc-300Strain Comments: - recA56-- Amino acid substitution Arg 60 Cys
- spoT1-- In addition to the 6bp insertion, there is a C to T transition resulting in an H257Y substitution.
- thiE1 was formerly called thi-1
References: - Clark, A.J. 1967. The beginning of a genetic analysis of recombination proficiency. J.Cell.Physiol. 70:165-180
- Willetts, N.S., A.J. Clark, B. Low 1969. Genetic location of certain mutations conferring recombination deficiency in Escherichia coli. J.Bacteriol. 97:244-249