Re: [ccp4bb] spherulites and PEG3350

2011-08-24 Thread Tom Peat
Subject: Re: [ccp4bb] spherulites and PEG3350 Something to consider is the quality of the PEG 3350. We have found that different qualities of PEG 3350 can give different results, depending on the type and amount of contaminants. What used to be the Fluka PEG 3350 is now the pharm grade of PEG 3350

Re: [ccp4bb] spherulites and PEG3350

2011-08-24 Thread Prince, D Bryan
her target protein. Good Luck! Bryan From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of Regina Kettering Sent: Wednesday, August 24, 2011 2:47 PM To: CCP4BB@JISCMAIL.AC.UK Subject: Re: [ccp4bb] spherulites and PEG3350 Something to consider is the quality of the PEG 3350

Re: [ccp4bb] spherulites and PEG3350

2011-08-24 Thread Jan van Agthoven
Thanks for the protocole and advice! I'll put my spherulites on gel. It will make things clear. Jan 2011/8/24 Regina Kettering > Something to consider is the quality of the PEG 3350. We have found that > different qualities of PEG 3350 can give different results, depending on the > type and am

Re: [ccp4bb] spherulites and PEG3350

2011-08-24 Thread Regina Kettering
Something to consider is the quality of the PEG 3350.  We have found that different qualities of PEG 3350 can give different results, depending on the type and amount of contaminants.  What used to be the Fluka PEG 3350 is now the pharm grade of PEG 3350 (aka Miralax).  We use high quality PEG 3

Re: [ccp4bb] spherulites and PEG3350

2011-08-24 Thread Gregory Verdon
You should check these "spherulites" on SDS-PAGE gel to make sure that these contain your protein. Then you can start thinking about optimization. On Wed, Aug 24, 2011 at 2:05 PM, Jan van Agthoven wrote: > Dear all, > > I recently obtained some spherulites while trying to crystallize my > protei

Re: [ccp4bb] spherulites and PEG3350

2011-08-24 Thread Savvas Savvides
Dear Jan I would recommend running the following protocol on your spherulites. Just pretend that they are crystals :) This was posted some time ago on the ccp4bb. best regards Savvas > On Tue, Nov 2, 2010 at 9:15 AM, Kenneth Verstraete < > kenneth.verstra...@ugent.be> wrote: > > > Hi Ivan, > > >