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Expression Competent Cells
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BL21 Chemically Competent Cell


Product Details

BL21 Chemically Competent Cell is specifically designed for chemical transformation of DNA. It is resistant to tetracycline  (TetR) and permits a transformation efficiency of over 107 cfu/μg DNA (tested by pUC19 plasmid DNA).


Features 

• Transformation efficiency: >107  cfu/μg (pUC19 DNA). 

• TetR

• Tight expression control ideal for toxic protein expression. 

• Control plasmid II (Amp+ ) is used for detection of expression function of cell. The protein size is about 26 kDa.


Storage

at -70oC for six months. Do not store in liquid nitrogen.


Shipping

Dry Ice

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