Artem,

Artem Evdokimov wrote:
Please note that osmotic shock extraction typically employs EDTA which is
obviously bad for IMAC.
This is not entirely correct.
I have used extracts with 5 mM EDTA for IMAC in the past.
If your IMAC column volume is large enough, only the top 1-2 mm will be
depleted of Me2+ (easily seen with Cu2+).
Moreover, it is always possible to add some Me2+ to your extract prior to IMAC.
All this was published long ago (Biochemistry. 31: 2690-2702, 1992).

Nadir

--

Pr. Nadir T. Mrabet
   Cellular & Molecular Biochemistry
   INSERM U-724
   Nancy University, School of Medicine
   9, Avenue de la Foret de Haye, BP 184
   54505 Vandoeuvre-les-Nancy Cedex
   France
   Phone: +33 (0)3.83.68.32.73
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