GST fusion rebinding to glutathione columns

[Keith Gough]

G'Day to all,

Can anyone tell me how to rebind a GST fusion to a glutathione resin. 
Typically, I find that at least 50% of a GST fusion, that has been purified 
from a glutathione resin by elution from the resin with glutathione, after 
dialysis will not bind. The only explanation I can think of is that there is 
still glutathione bound to the binding site of GST.
I am trying to remove this glutathione from the binding site with NaCl but as 
yet do not know if it will work.

I would be grateful for all comments

Keith Gough