CGSC Strain#: 5160
Strain Designation: D21e19     
Source of Strain: H.G. Boman
Sex: F-
Chromosomal Markers: proA23,
lac-28,
tsx-81,
trp-30,
his-51,
rpsL173(strR)
,
rfa-11,
ampCp-1Strain Comments: - ampCp-1-- is a promoter mutation; AmpC+ strains carrying this allele produce about 10X the amount of beta lactamase found in wild-type strains. In absence of other amp alleles, use 10-15 ug/ml Amp.
- ampCp-1 was formerly called ampA1
- rfa-11 was formerly called lpsB11
- strR = streptomycin resist.
References: - Eriksson-Grennberg, K.G., K. Nordstrom, P. Englund 1971. Resistance of Escherichia coli to penicillins. IX. Genetics and physiology of Class II ampicillin-resistant mutants that are galactose negative or sensitive to Bacteriophage C21, or both. J.Bact