We have the same experience with the DO NOT AGITATE.  We purify our own
His-tagged TEV protease, and flash-freeze it IMMEDIATELY after IMAC prep at
about 1 mg/mL.

Laurie Betts
UNC



On Thu, Mar 31, 2011 at 10:37 AM, Charles Allerston <
charles.allers...@sgc.ox.ac.uk> wrote:

> I echo this.
>
> Some time ago I was working on a target which seemed to precipitate when
> cleaving overnight with TEV. I wasted a fair bit of time trying to optimise
> cleavage conditions with a myriad of buffers.  In the end, just by not
> agitating my solution, there was no precipitation and recovery was extremely
> good.
>
> I never agitate my solutions when cleaving now and have not had any
> problems with cleavage (to do with this issue, anyway) or recovery.
>
>
> cheers
> charlie
>
>
>
> Dr. Charles Allerston
> Genome Integrity Group
> Structural Genomics Consortium
> Nuffield Department of Medicine
> Old Road Campus
> University of Oxford
> OX3 7DQ
> http://www.sgc.ox.ac.uk/
>
>
>
>
>
> -----Original Message-----
> From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of
> Xiaopeng Hu
> Sent: 31 March 2011 15:23
> To: CCP4BB@JISCMAIL.AC.UK
> Subject: Re: [ccp4bb] Question about TEV cleavage
>
> Our experience is do not shake the tube during TEV cleavage,I dont know
> why, but it does help.
>
> xiaopeng
>

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