CGSC Strain#: 5223
Strain Designation: JE513      Source of Strain: E. Ohtsubo
Sex: F' Episome/Plasmid: F13-4
   Plasmid Markers/Mutations:
   Plasmid Comment: Has a deletion of part of F. (16.3-37.2 kb) as well as
Chromosomal Markers: lacY40, purE83
Strain Comments:

• lacY40-- When lacY40 and lac ? appear in a genotype, it is meant to indicate that lacY40 has become more stable due to a second mutation, perhaps in lac occurring in W3828.

References:

• Hu, S, E Otsubo, N Davidson, H Saedler 1975. Electron microscope heteroduplex studies of sequence relations among bacterial plasmids: identification and mapping of the insertion sequences IS1 and IS2 in F and R plasmids. J. Bacteriol. 122(2):764-75.