CGSC Strain#: 4026
Strain Designation: JC1552/T₆      Source of Strain: E.A. Adelberg
Sex: F- Chromosomal Markers: leuB6(Am), fhuA2, lacY1, tsx-62, glnV44(AS), gal-6, λ^-, trp-31, hisG1(Fs), argG6, rpsL104, malT1(λ^R), xyl-7, mtlA2, metB1
Strain Comments:

• Reference to parent strain JC1552.
• leuB6(Am)-- Suppressed by serU suppressor (supH)
• glnV44(AS) was formerly called supE44
• glnV44(AS) was formerly called su⁺_II
• xyl-7 was formerly called xylA7
• = strep-resistant
• Am = amber(UAG) mutation
• AS = amber(UAG) suppressor
• Fs = Frameshift mutation
• LamR = Lambda-resistant

References:

• Clark, A.J., A.D. Margulies 1965. Isolation and characterization of recombination-deficient mutants of Escherichia coli K12. Proc.Natl.Acad.Sci.USA 53:451-459