CGSC Strain#: 5270
Strain Designation: TK53      Source of Strain: T.K. Sundaram
Sex: F- Chromosomal Markers: glnX44(AS), pncA1, his-89, nadB7, rpsL182(strR)
Strain Comments:

• glnX44(AS)-- Mutation is a C to T transition at nucleotide 34 (3rd position of the anticodon)
• pncA1-- : nicotinamide requirement
• glnX44(AS) was formerly called glnV44
• glnX44(AS) was formerly called su⁺_II
• glnX44(AS) was formerly called supE44
• pncA1 was formerly called nam-11
• AS = amber(UAG) suppressor
• strR = streptomycin resist.

References:

• Dickinson, E.S., T.K. Sundaram 1970. Chromosomal location of a gene defining nicotinamide deamidase in Escherichia coli. J.Bacteriol. 101:1090-1091