CGSC Strain#: 6908
Strain Designation: N2880      Source of Strain: H. Nakamura
Sex: F- Chromosomal Markers: Δlac-85, tsx-459, glnX44(AS), galK2(Oc), galT23, gyrA21(NalR), rpsL197(strR), xylA5, mtl-1, fim-2, pho-80
Strain Comments:

• glnX44(AS)-- Mutation is a C to T transition at nucleotide 34 (3rd position of the anticodon)
• galK2(Oc)-- is a GAA(glu) to TAA(ochre) mutation, residue 134. Oller et al.1993. Apparently non-suppressible, since all revertants found were at the ochre site.
• galT23-- : This is the standard gal₆ of Morse & Lederberg.
• fim-2 was formerly called pil-2
• galK2(Oc) was formerly called gal₂
• glnX44(AS) was formerly called su⁺_II
• glnX44(AS) was formerly called supE44
• glnX44(AS) was formerly called glnV44
• AS = amber(UAG) suppressor
• NalR = Nalidix.acidResist.
• Oc = ochre(UAA) mutation
• strR = streptomycin resist.

References:

• Nakamura, H, N Hachiya, T Tojo 1978. Second acriflavine sensitivity mutation, acrB, in Escherichia coli K-12. J. Bacteriol. 134(3):1184-7.