CGSC Strain#: 4816
Strain Designation: ES568      Source of Strain: E. Siegel
Sex: F- Chromosomal Markers: fhuA2::IS2, lacY1, tsx-1 or tsx-70, glnX44(AS), gal-6, λ^-, xyl-7, mtlA2, mutL13
Strain Comments:

• glnX44(AS)-- Mutation is a C to T transition at nucleotide 34 (3rd position of the anticodon)
• mutL13-- Ref. to mutL13, cited below
• fhuA2::IS2 was formerly called fhuA2
• glnX44(AS) was formerly called su⁺_II
• glnX44(AS) was formerly called supE44
• glnX44(AS) was formerly called glnV44
• xyl-7 was formerly called xylA7
• ::IS2 = Insertion of IS2
• AS = amber(UAG) suppressor

References:

• Liberfarb, RM, V Bryson 1970. Isolation, characterization, and genetic analysis of mutator genes in Escherichia coli B and K-12. J. Bacteriol. 104(1):363-75.