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BioReference BL21 kit, anti-BL21-antibody, BL21 whole cell extract

BL21 is the most often used host strain for protein expression with the T7 polymerase / prophage DE3 system of Studier and Moffatt (1985). Unfortunately the means and the results of the genetic transduction by which the B834 strain became Met+ are not documented by Studier and Moffatt. Due to this lack of defined pedigree most of the  BL21 based expression hosts are not the best choice when it comes to preparing the documents for approval by an pharmaceutical authority. Nevertheless the strains are valuable for research and the fast establishment of a production and purification procedure.
BioReference BL21 kit contains a standardized whole-cell extract and a highly specific and sensitive polyclonal antibody. With the kit you can detect easily residual contaminants in your purified protein preparation.

Package content: 100 µg of anti-BL21-antibody and 20 µg of BL21 whole cell extract, instruction leaflet

BioReference BL21 kit, anti-BL21-antibody, BL21 whole cell extract

BL21 is the most often used host strain for protein expression with the T7 polymerase / prophage DE3 system of Studier and Moffatt (1985). Unfortunately the means and the results of the genetic transduction by which the B834 strain became Met+ are not documented by Studier and Moffatt. Due to this lack of defined pedigree most of the  BL21 based expression hosts are not the best choice when it comes to preparing the documents for approval by an pharmaceutical authority. Nevertheless the strains are valuable for research and the fast establishment of a production and purification procedure.
BioReference BL21 kit contains a standardized whole-cell extract and a highly specific and sensitive polyclonal antibody. With the kit you can detect easily residual contaminants in your purified protein preparation.

Package content: 100 µg of anti-BL21-antibody and 20 µg of BL21 whole cell extract, instruction leaflet