CGSC Strain#: 13614
Strain Designation: pLC3-2      Source of Strain:
Sex: F+ Episome/Plasmid: pLC3-2
   Plasmid Markers/Mutations: araC14, thr-1, leuB6(Am), lacY1, glnX44(AS), galK2(Oc), galT22, λ^-, ΔtrpE63, recA56, xylA5, mtl-1, thiE1, purB , trmU , icd
   Plasmid Comment: pLC3-2 carries {\it trmU (asuE)} antisuppressor mutation. Hybridizes with Kohara clones 238, 239 at c.25.6 min.
Chromosomal Markers: thr-1, araC14, leuB6(Am), lacY1, glnX44(AS), galK2(Oc), galT22, λ^-, ΔtrpE63, recA56, xylA5, mtl-1, thiE1
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)
• 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.
• recA56-- Amino acid substitution Arg 60 Cys
• 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
• thiE1 was formerly called thi-1
• ΔtrpE63 was formerly called DE(trpE5)
• Am = amber(UAG) mutation
• AS = amber(UAG) suppressor
• Oc = ochre(UAA) mutation
• Am = amber(UAG) mutation
• AS = amber(UAG) suppressor
• Oc = ochre(UAA) mutation

References:

• Smith, G.R. . Personal Communication. Personal Communication
• Clarke, L, J Carbon 1976. A colony bank containing synthetic Col El hybrid plasmids representative of the entire E. coli genome. Cell 9(1):91-9.
• Sullivan, M.A., J.F. Cannon, F.H. Webb, A. Bock 1985. Antisuppressor mutation in Escherichia coli defective in biosynthesis of 5-methylaminomethyl-2-thiouridine. J.Bacteriol. 161:368-376
• Nishimura, A., K. Akiyama, Y. Kohara, K. Horiuchi 1992. Correlation of a subset of the pLC plasmids to the physical map of Escherichia coli K-12. Microbiol.Rev. 56:137-151