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Promega Corporation

Pro 5-alpha, JM109 and HB101 Competent Cells

Pro 5-alpha can be used for the efficient transformation of unmethylated DNA derived from PCR, cDNA and many other sources (hsdR). The elimination of nonspecific endonuclease I (endA1) enables the highest quality plasmid preparations. The strain is resistant to phage T1 (fhuA2) and suitable for blue/white screening by α-complementation of the β-galactosidase gene. Single-use Pro 5-alpha Competent Cells are available in high efficiency at greater than 109cfu/µg.

JM109 and HB101 Competent Cells are prepared according to a modified procedure of Hanahan.

JM109 is a K strain that is recA– and ...

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  • Prices valid for US customers only
Product Size Conc. Catalog # *List Price QTY Add to Cart

Single-Use JM109 Competent Cells, >108cfu/µg

1ml
(20 × 50µl)
- L2005 $ 165.00 Add to cart

JM109 Competent Cells, >107cfu/μg

1ml
(5 × 200μl)
- L1001 $ 97.00 Add to cart

JM109 Competent Cells, >108cfu/μg

1ml
(5 × 200μl)
- L2001 $ 131.00 Add to cart

Single-Use HB101 Competent Cells, >108cfu/µg

1ml
(20 × 50µl)
- L2015 $ 144.00 Add to cart

HB101 Competent Cells, >108cfu/μg

1ml
(5 × 200µl)
- L2011 $ 114.00 Add to cart

Single-Use Pro 5-alpha Competent Cells, >109cfu/µg

1ml
(20 × 50µl)
- L1221 $ 247.00 Add to cart


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