GR523      Source of Strain:
Hfr Point of Origin#:
45 Map Position:
65.00 Direction of Marker Transfer:
Counterclockwise Chromosomal Markers: λ-
, thiE1Strain Comments:
- Although the pedigree of this strain indicates that it should be λ-, we had a report that it is λ+.
- 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
- Dermody, JJ, GT Robinson, R Sternglanz 1979. Conditional-lethal deoxyribonucleic acid ligase mutant of Escherichia coli. J. Bacteriol. 139(2):701-4.