BAC-to-BAC questions?

Michael Lassner mikel51 at
Tue Oct 7 07:03:03 EST 1997

I went through this once.  Call Gibco/BRL tech support, and they will
tell you the order number for cells adapted to serum free media.  The
cells are free, but they charge $20 for shipping on dry ice.  Be sure to
use the antibiotics for culture--I couldn't grow their cells without
Yi Zhang (BIO) wrote:
> Hi Netters:
> I recently purchased the Bac-to-Bac system for making recombinant
> bac-Virus. However, I have to adapt the SF9 cells to serum-free medium
> before the transfection with the supplied cellFectin. I have some hard
> time to adapt Sf9 cells to the serum free medium (Grace's medium). It
> takes too long to get the cells to serum free medium (stepwisely).
> finally, the cells got to the serum free medium after so many passes. They
> seemed to stop proliferating. I really need help on this since it is the
> first time doing so. the question I have is: Has anyone tried to do the
> transfection without serum adaptation of the cells? (with the system from
> BRL). Or how long does it take to adapt the sf9 cells usually? Any other
> suggestions or observations will certainly help as well. thanks all.
> Bye
> Ian

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