CGSC Strain#: 4311
Strain Designation: KL226     
Source of Strain: M.C. Cappello
Sex: Hfr
Point of Origin#: 2A
Map Position: 12.20
Direction of Marker Transfer: Counterclockwise
Chromosomal Markers: fhuA22,
λ-,
ompF627(T2R)
,
fadL701(T2R)
,
relA1,
pitA10,
spoT1,
rrnB-2,
mcrB1,
creC510Strain Comments: - spoT1-- In addition to the 6bp insertion, there is a C to T transition resulting in an H257Y substitution.
- rrnB-2-- : loss of spacer loop sequence
- creC510-- The constitutive phenotype is due to an R77P amino acid substitution
- creC510 was formerly called phoM510
- Const = constitutive
- T2R = T2 Resistant
References: - Low, K.B. 1973. Rapid mapping of conditional and auxotrophic mutants of Escherichia coli K-12. J.Bacteriol. 113:798-812