Purification of GST fusion proteins

[I-Jen Huang]

In article <D7oywH.EoK at murdoch.acc.Virginia.EDU> "R. John Lye" <rjl6n at uva.pcmail.virginia.edu> writes:
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>Subject: Re: Purification of GST fusion proteins
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>From: "R. John Lye" <rjl6n at uva.pcmail.virginia.edu>
>Date: Thu, 27 Apr 1995 11:36:16 GMT
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>> Our GST fusion protein (approx. 100 kDa) does not bind to Pharmacia Glutathione Sepa
>> Sepharose under standard conditions. 

>Is it soluble or is it going into inclusion bodies? 

>cheers,
>John
 I also encountered the same kind of problem of my GST fusion protein, 
and I was very sure thta it is soluble (confirmed by immunodetection).  
The fusion protein binds to glutarthion-beads (Sigma) in a very low 
efficiency manner, and most of the fusion proteins would be washed from 
the beads with only on wash.

I-Jen Huang
Gr8bn at cc.usu.edu