Competent Cells for Cloning Unstable DNA | Thermo Fisher Scientific

Competent Cells needed for specialized applications like cloning unstable DNA, making single stranded DNA, Gateway compatibility, and more.

Which competent cells are right for you?

	Intended for cloning direct repeat retroviral sequences, and tandem array genes	Designed for cloning direct repeats found in lentiviral expression vectors	Ideal for generating cDNA and genomic libraries and for cloning unstable inserts
	MAX Efficiency Stbl2 Chemically Competent Cells	One Shot Stbl3 Chemically Competent E. coli*	ElectroMAX Stbl4 Competent Cells
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Format	Bulk	One Shot (pre-aliquoted; single use)	Bulk
Volume per vial (µL)	200	50	100
Number of vials	5	21	5
Total volume (µL)	1,000	1,050	500
Transformation efficiency	>1 x 10⁹ cfu/µg	>1 x 10⁸cfu/µg	>5 x 10⁹ cfu/µg
Type of transformation	Chemical	Chemical	Electroporation
Mutations in genotype for cloning genomic DNA or methylated cDNA
Blue/white screening
Contains F' episome for making single-stranded DNA
	Order	Order	Order
Stbl3 E. coli* strain also available as high-throughput MultiShot formats

For Research Use Only. Not for use in diagnostic procedures.