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Mach1 T1R is the fastest-growing chemically competent strain currently available (Figure 1). Their colonies are clearly visible within eight hours of plating the transformed cells (ampicillin selection only). Mach1 T1R competent cells are phage resistant owing to the tonA (fhuA) deletion in their genotype and are designated as Mach1 T1R. Phage resistance properties protect cells from lysis by T1, T5, and φ80 phages.
Figure 1. The rapid growth rate of Mach1 T1RE. coli compared to standard cloning. Mach1 T1R, XL10-Gold, TOP10, XL1-Blue, and DH5α E. coli were transformed with pUC19 and grown overnight. Each culture was inoculated 1:50 in 50 mL of LB ampicillin in 500 mL flask. Growth was measured every 30 minutes for 5.5 hours. Mach1 T1R cells reached a desired optical density (e.g., for mini-prep analysis) significantly faster (in 4 hours) than other tested strains.
Which Mach1 E. coli format is right for you?
One Shot Mach1 T1 Phage-Resistant Chemically Competent E. coli | MultiShot StripWell Mach1 T1 Phage-Resistant Chemically Competent E. coli | MultiShot FlexPlate Mach1 T1R Competent Cells | |
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Type of transformation | Chemical | Chemical | Chemical |
Transformation efficiency | >1 x 109 cfu/µg | >1 x 109 cfu/µg | >1 x 108 cfu/µg |
Available formats |
In addition to competent cells, we offer a broad suite of products for the cloning workflow.
Explore types of bacterial growth media to use for cloning, plasmid DNA preparation, and protein expression.
Learn more about universal-fit electroporation cuvettes for use with competent cells.
Learn more about one-step PCR cloning that combines traditional restriction and ligation cloning.
Gibson Assembly cloning kits provide highly efficient, seamless cloning, enabling the assembly of multiple DNA fragments of varying lengths into any vector.
Have any questions on competent cells or transformation? Click on the resources listed below to access overviews, videos, genotype guides, and educational resources.
Review rich educational content on transformation workflow, troubleshooting, strategies, and selection guides.
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Watch instructional videos on troubleshooting tips, how-to videos, and explainers related to molecular cloning.
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