Hi,

can you give a bit more information...

Can you concentrate the protein easily to a higher concentration, let's say 2-3 times from what you have now, without precipitation?

What is the buffer of your protein stock solution at the moment?

At what temperature and what precipitant are you using?

- Jeroen -


showers of crystals

-------- Original message --------
Subject:[SURESPAM] [ccp4bb] small crystals
From:Careina Edgooms <careinaedgo...@yahoo.com>
To:CCP4BB@JISCMAIL.AC.UK
Cc:


Hi all

Any advice on how to get bigger crystals from conditions that give showers of tiny crystals? I am getting small pretty looking individual crystals but they are too small and they don't seem to grow. In fact, in some instances if left for a couple of days they actually dissolve. I have fiddled around with mother liquor volume, protein concentration as well as drop volume (I am using hanging drop method) but none seem to make any difference and I always get the same tiny crystals. I think I might try microseeding but I haven't tried that yet. 

Any suggestions or tricks would be welcome 
Careina.

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