CGSC Strain#: 6055
Strain Designation: JF448     
Source of Strain: J. Felton
Sex: F+
Chromosomal Markers: asnB32,
λ-,
relA1,
spoT1,
rbs-4,
asnA31,
thiE1,
bglR13Strain Comments: - spoT1-- In addition to the 6bp insertion, there is a C to T transition resulting in an H257Y substitution.
- asnA31-- Reported to be an amber mutation
- thiE1 was formerly called thi-1
References: - Felton, J, S Michaelis, A Wright 1980. Mutations in two unlinked genes are required to produce asparagine auxotrophy in Escherichia coli. J. Bacteriol. 142(1):221-8.