Basic e'poration advice

Chris LaRosa clarosa at
Tue Feb 29 18:39:22 EST 2000

John Dixon wrote:

> Hi, I used to make e'comp cells a while back and have just made several
> new batches by the same method (the GYT resuspension protocol that was
> published in TIBS technical tips a few years ago).
> We have a new GenePulserII now and although the competency of my cells
> is OK (1-5x10E8), the time constants when I use my cells are 2-2.5

You may have a little more solutes left over in cells than before... What
is the problem? if they dont arc, and the competency is ok , I would not
worry any more about it.  Try reducing the volume of cells by halve.

More information about the Methods mailing list