CGSC Strain#: 1054
Strain Designation: AB1054      Source of Strain: E.A. Adelberg
Sex: F' Episome/Plasmid: F14-2
   Plasmid Markers/Mutations: ilvP-270
Chromosomal Markers: lacY1 or lacZ4, glnX44(AS), gal-6, hisG1, rpsL8 or rplL9(L?) or rpsL17, malT1(λ^R), xyl-7, mtlA2, metB1, ΔargH1, thiE1
Strain Comments:

• 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
• glnX44(AS) was formerly called su⁺_II
• glnX44(AS) was formerly called supE44
• glnX44(AS) was formerly called glnV44
• thiE1 was formerly called thi-1
• xyl-7 was formerly called xylA7
• = strep-resistant
• AS = amber(UAG) suppressor
• LamR = Lambda-resistant

References:

• Ramakrishnan, T., E.A. Adelberg 1965. Regulatory mechanisms in the biosynthesis of isoleucine and valine. II. Identification of two operator genes. J.Bacteriol. 89:654-660