CGSC Strain#: 5468
Strain Designation: JM226      Source of Strain: M.C. Jones-Mortimer
Sex: F- Chromosomal Markers: pro-0, lac-, tsx-0, galT47, trp-74, his-0, cysH57, argA9999, rpsL999(strR), mal-0, xyl, ilvA0, mtl-0
Strain Comments:

• We have not been able to trace the derivation of the ancestral strain called "22A43".
• strR = streptomycin resist.

References:

• Jones-Mortimer, MC 1973. Mapping of structural genes for the enzymes of cysteine biosynthesis in Escherichia coli K12 and Salmonella typhimurium LT2. Heredity 31(2):213-21.