CGSC Strain#: 6839
Strain Designation: Str^R      Source of Strain: H. Echols
Sex: F- Chromosomal Markers: galK2(Oc), rpsL200(strR)
Strain Comments:

• This schould be identical to cgsc# 5892, 6785, 4843.
• 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.
• galK2(Oc) was formerly called gal₂
• Oc = ochre(UAA) mutation
• strR = streptomycin resist.

References:

• Pratt, D., W.S. Erdahl 1968. Genetic control of bacteriophage M13 DNA synthesis. J.Mol.Biol. 37:181-200
• Gottesman, M.E., M. Yarmolinsky 1968. Integration-negative mutants of bacteriophage lambda. J.Mol.Biol. 31:487-505
• Friedman, DI, CT Jolly, RJ Mural 1973. Interference with the expression of the N gene function of phage lambda in a mutant of Escherichia coli. Virology 51(1):216-26.