kDa limit E. coli expression
(by zambonel from gmail.com)
Mon Sep 10 12:45:25 EST 2007
I successfully expressed a 135kDa yeast protein fused to a 50kDa (total
185kDa) in BL21STAR. I also expressed a 280kDa yeast protein at very low
level but that was a kinase with all the additional problems involved in
expressing this class of enzymes. Other fusion proteins I expressed were
On 9/10/07, Soenke Behrends <s.behrends from tu-bs.de> wrote:
> Dear All,
> is there a size limit for soluble expression of proteins in E. coli?
> Have codon optimized artificial genes pushed the limits? Is it
> reasonable to assume that it is difficult above 50 kDa and impossible
> above 100 kDa to get soluble expression in E. coli?
> Thanks for your kind help!
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