CGSC Strain#: 4210
Strain Designation: EM2001      Source of Strain: E. McFall
Other Designations: F32
Sex: F' Episome/Plasmid: F32
   Plasmid Markers/Mutations:
Chromosomal Markers: lacY1 or lacZ4, glnV44(AS), λ^-, rfbC1, purF1, aroC4, dsdA1, rpsL8 or rplL9(L?) or rpsL14, malT1(λ^R), xyl-7, mtlA2, ΔargH1, thiE1, tsx-23 or tsx-25
Strain Comments:

• This strain should be grown on medium containing B₁, arg, and lacking try, phe, tyr, ade.
• purF1-- is a very stable mutation and may be an intragenic deletion.
• dsdA1-- is called dsdA7 by McFall (1967 Genetics 55:91).
• glnV44(AS) was formerly called supE44
• glnV44(AS) was formerly called su⁺_II
• rfbC1 was formerly called rfbD1
• thiE1 was formerly called thi-1
• xyl-7 was formerly called xylA7
• AS = amber(UAG) suppressor
• LamR = Lambda-resistant
• strR = streptomycin resist.

References:

• McFall, E 1967. Dominance studies with stable merodiploids in the D-serine deaminase system of Escherichia coli K-12. J. Bacteriol. 94(6):1982-8.