CGSC Strain#: 4401
Strain Designation: E. coli K-12 wildtype      Source of Strain:
Other Designations: EMG2
Sex: F+ Chromosomal Markers: Strain Comments:

• Chromosomal markers: none, by definition.
• EMG2 is the Clowes and Hayes laboratory designation for the K-12 wildtype used and distributed in connection with their lab manual(1968). We send it as our wildtype because it is not known to have mutations picked up during lab culture as other WT's have

References:

• Clowes, R., W. Hayes 1968. Experiments in microbial genetics
• Bachmann, BJ 1972. Pedigrees of some mutant strains of Escherichia coli K-12. Bacteriol.Rev. 36(4):525-57.