CGSC Strain#: 5042
Strain Designation: JM15     
Source of Strain: M.C. Jones-Mortimer
Sex: F-
Chromosomal Markers: cysE50,
tfr-8Strain Comments: - This strain is sensitive to cysteine; use cystine, instead. The nature of the mutation conferring resistance to phage T4 (tfr-8) is not known.
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.