Research Article

Overexpression of mfpA Gene Increases Ciprofloxacin Resistance in Mycobacterium smegmatis

Table 1

Strains and plasmids used in this work.

Strains and plasmidsRelevant characteristicsReferences

E. coli XL1-BluerecA, endA, gyrA, thi-1, hsd R17, supE44, relA, lac [F′ proAB lacIqZΔM15 Tn10 (TetR)].Stratagene, CA, USA
M. smegmatis mc2155Mutant, transformable strain of M. smegmatis derived from the strain mc26.Snapper et al. [16]
M. smegmatis mc2155 gyrA D94GFQ-resistant mutant strain of M. smegmatis mc2155 with the gyrA D94G substitution.Our laboratory
pJEM15Cloning and shuttle vector (9.5 kbp) with a promoterless lacZ gene. KanR (25 μg/ml).Timm et al., [17]
pJEM15-5.11pJEM15 cloning vector with the putative promoter region of the mfpEA operon.This study
pALACEExpression and shuttle vector (8221 bp) with a strong promoter (Pace) induced with acetamide. HygR (50 μg/ml).Lakshminarayan et al. [18]
pALACE-mfpApALACE vector with the mfpA gene of M. smegmatis.This study