CGSC Strain#: 5378
Strain Designation: WP2      Source of Strain: E.M. Witkin
Other Designations: AC5378
Sex: F- Chromosomal Markers: lon-11, sulA1, trpE65(Oc)
Strain Comments:

• This is a derivative of E. coli B/r.
• lon-11-- is a mutation of an E. coli B gene caused by an IS186 insertion in the promoter. All derivatives of Witkin's B wildtype carry this lon mutation.
• Oc = ochre(UAA) mutation

References:

• Witkin, E.M. 1956. Cold Spr.Harb.Symp.Quant.Biol. 21:123-0
• Hill, RF 1965. Ultraviolet-induced lethality and reversion to prototrophy in Escherichia coli strains with normal and reduced dark repair ability. Photochem. Photobiol. 4(3):563-8.
• Hill, RF 1970. Location of genes controlling excision repair of UV damage and mutator activity in Escherichia coli WP2. Mutat. Res. 9(3):341-4.