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. 2003 Mar;47(3):1062–1067. doi: 10.1128/AAC.47.3.1062-1067.2003

TABLE 3.

MICs for E. coli XL-1 Blue cells harboring SME-1, SME variants, TEM-1, and pTP123 vector

β-Lactamase MIC (μg/ml)
Ampicillin Imipenem Cefotaxime
SME-1 2,000 50 0.2
SME-1 (Cys238-TGC) 2,000 50 0.2
TEM-1 2,000 1 0.05
pTP123 2 0.0625 0.05