Re: [ccp4bb] expression of membrane proteins as GST fusions

2011-05-28 Thread Catarina Rodrigues
Hi, To purify your protein you can use GST-Trap HP column, it is quite easy, you have to elute in a buffer with 20mM reduced glutathione. HTH, Catarina -- Catarina Rodrigues, PhD Student Molecular Transport & Signalling AFMB UMR 6098 CNRS/UI/UII Case 932 163 Avenue de Luminy 13288 Marseille

Re: [ccp4bb] expression of membrane proteins as GST fusions

2011-05-27 Thread Anna Maria Tochowicz
Hi Pascal, The GST helps a lot with expression, but unfortunately it's very difficult to purify it away after cleavage. I would strongly recommended to try MBP tag. Good luck! Anna On Fri, May 27, 2011 at 1:50 PM, Pascal Egea wrote: > > Dear All, > > This is not strictly a crystallography rel

[ccp4bb] expression of membrane proteins as GST fusions

2011-05-27 Thread Pascal Egea
Dear All, This is not strictly a crystallography related question. We are trying to express several membrane proteins and were considering the use of GST as a fusion partner instead of the HIS or FLAG purification tags. I would like to know if anyone had any experience (positive or negative) to sh