CGSC Strain#: 7203
Strain Designation: TKS20      Source of Strain: T.K. Sundaram
Other Designations: W3899nam20
Sex: F- Chromosomal Markers: glnX44(AS), pncA20, nadB7
Strain Comments:

• glnX44(AS)-- Mutation is a C to T transition at nucleotide 34 (3rd position of the anticodon)
• glnX44(AS) was formerly called su⁺_II
• glnX44(AS) was formerly called supE44
• glnX44(AS) was formerly called glnV44
• pncA20 was formerly called nam20
• AS = amber(UAG) suppressor

References:

• Sundaram, TK 1967. Biosynthesis of nicotinamide-adenine dinucleotide in Escherichia coli. Biochim. Biophys. Acta 136(3):586-8.