nospam at nospam.edu
Tue Oct 27 08:18:26 EST 1998
In article <71519f$5hi$1 at mserv2.dl.ac.uk>, "John Grant"
<jgrant at srv0.bio.ed.ac.uk> wrote:
> Hi - I'm trying to get hold of a helper plasmid that has a selectable
> marker other than Kan or Tet.....can anybody help me out?
> Thanks very much
> John Grant
I'm assuming (dangerous) that you are looking for a conjugation delivery
helper plasmid. Check out de Lorenzo, et al. 1990. J. Bact.
172:6568-6572. Look at the following strain. S17-1 lambda-pir Tp-r,
Sm-r, thi, pro, hsdR- M+, RP4:2-Tc:Mu:Km Tn7, lambda pir phage lysogen.
In my hands it is neither Kan or Tet resistant and is able to mobilize an
R6K ori plasmid.
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