CGSC Strain#: 5043
Strain Designation: JM39      Source of Strain: M.C. Jones-Mortimer
Sex: F+ Chromosomal Markers: cysE51, tfr-8
Strain Comments:

• This strain is sensitive to cysteine; use cystine instead. The nature of the mutation conferring T4 resistance ( tfr-8 is unknown.

References:

• Jones-Mortimer, MC 1968. Positive control of sulphate reduction in Escherichia coli. Isolation, characterization and mapping oc cysteineless mutants of E. coli K12. Biochem. J. 110(3):589-95.