CGSC Strain#: 5174
Strain Designation: TP3      Source of Strain: H.G. Boman
Sex: F- Chromosomal Markers: proA23, lac-28, tsx-81, trp-30, his-51, rpsL173(strR), ilv-631, ampCp-1, ampC3
Strain 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.
• ampC3-- was formerly called ampA1.
• ampCp-1 was formerly called ampA1
• strR = streptomycin resist.

References:

• Burman, L.G., J.T. Park, E. Lindstrom, H.G. Boman 1973. Resistance of Escherichia coli to penicillins: identification of the structural gene for the chromosomal penicillinase. J.Bacteriol. 116:123-130