cm amplification?

Paul N Hengen pnh at
Thu Oct 1 10:15:49 EST 1992

Tao Tao writes:

>I really don't think that you need to amplify pUC based vector, since each
>cell has about 200 copies.  What you need to do is to increase the final
>cell density, which could be achieved by better nutrition.  See BRL's
>focus or catalog about the TB (terrific broth) medium.

You don't have to use Terrific Broth to do this. Simply inoculate a
selective LB plate with 0.5 ml of log phase culture and incubate
24-36 hours. Then flood the plate with 3.0 ml of any kind of broth
or saline and scrape the cells from the surface with a glass rod.

Paul N. Hengen
National Cancer Institute
Frederick Cancer Research and Development Center
Frederick, Maryland 21702-1201 USA

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