CGSC Strain#: 6330
Strain Designation: HT337      Source of Strain: H. Tabor
Sex: F- Chromosomal Markers: thr-1, leuB6(Am), fhuA2::IS2, pro-27, lacY1, glnX44(AS), gal-6, λ^-, hisG1, lysP81, gyrA217(NalR), malT1(λ^R), xyl-7, rplL9(L?), purA45
Strain Comments:

• leuB6(Am)-- Suppressed by serU suppressor (supH)
• glnX44(AS)-- Mutation is a C to T transition at nucleotide 34 (3rd position of the anticodon)
• hisG1-- This mutation has been reported as either a frameshift or a 36 nt deletion
• 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
• lysP81 was formerly called cadR1
• xyl-7 was formerly called xylA7
• ::IS2 = Insertion of IS2
• Am = amber(UAG) mutation
• AS = amber(UAG) suppressor
• L? = assignment uncertain
• LamR = Lambda-resistant
• NalR = Nalidix.acidResist.

References:

• Tabor, H., E.W. Hafner, C.W. Tabor 1980. Construction of an Escherichia coli strain unable to synthesize putrescine, spermidine, or cadaverine: characterization of two genes controlling lysine decarboxylase. J.Bacteriol. 144:952-956