Serge Champetier wrote:
> I am seeking a simple system for overexpression of a 50 amino acid
> protein. High yield (at least 10 mg) and good purity of the protein are
> needed, but no post-translational modification is required. Is the GST
> fusion protein system in E.coli a good choice?
> Serge Champetier, M.Sc.
> Quebec City, Canada.
GST is probably not a good idea since the tag is 27 kDa (about 250 aa).
Why not do some standard biochemistry and purify it on HPLC. With a
variety of steps you should be able to get it fairly pure. At 50 aa, gel
filtration could be pretty useful.
Colin Rasmussen
