CGSC Strain#: 5008
Strain Designation: XA22     
Source of Strain: S. Brenner
Other Designations: 2320M116
Sex: F-
Chromosomal Markers: Δ(lacZ-lacI)28,
lacI22,
rpsL135(strR)
,
malT1(λ
R)
,
xyl-7,
mtlA2,
thiE1Strain Comments: - The deletion of part of the lacZ and lacI genes is called deletion M116 by Beckwith et al.
- lacI22 was formerly called laci3-
- lacI22 was formerly called lacI3
- thiE1 was formerly called thi-1
- xyl-7 was formerly called xylA7
- LamR = Lambda-resistant
- strR = streptomycin resist.
References: - BECKWITH, JR 1964. A DELETION ANALYSIS OF THE LAC OPERATOR REGION IN ESCHERICHIA COLI. J. Mol. Biol. 8:427-30.
- Newton, W.A., J.R. Beckwith, D. Zipser, S. Brenner 1965. Nonsense mutants and polarity in the lac operon of Escherichia coli. J.Mol.Biol. 14:290-296