Re: [ccp4bb] trouble with protein storage

2009-11-19 Thread Annie Hassell
919/483-0368 (FAX) annie.m.hass...@gsk.com "LEDU Marie-Helene 16" Sent by: "CCP4 bulletin board" 18-Nov-2009 03:45 Please respond to "LEDU Marie-Helene 16" To CCP4BB@JISCMAIL.AC.UK cc Subject [ccp4bb] trouble with protein storage Hello, Sorry

Re: [ccp4bb] trouble with protein storage

2009-11-18 Thread Fischmann, Thierry
luck Thierry -Original Message- From: CCP4 bulletin board [mailto:ccp...@jiscmail.ac.uk] On Behalf Of LEDU Marie-Helene 16 Sent: Wednesday, November 18, 2009 03:45 AM To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] trouble with protein storage Hello, Sorry for the unrelated questio

Re: [ccp4bb] trouble with protein storage

2009-11-18 Thread Roger Rowlett
You might consider trehalose as a substitute for glycerol. Cheers, Roger Rowlett On 11/18/09, LEDU Marie-Helene 16 wrote: > Hello, > > Sorry for the unrelated question. > We encounter important storage problem of our favorite protein. > We can not freeze it without a lost of 50 to 90 %, and

Re: [ccp4bb] trouble with protein storage

2009-11-18 Thread Flip Hoedemaeker
Hmm, You can try to precipitate it with AmmSO4 and keep it as a suspension at 4C. Flip LEDU Marie-Helene 16 wrote: Hello, Sorry for the unrelated question. We encounter important storage problem of our favorite protein. We can not freeze it without a lost of 50 to 90 %, and can not use g

[ccp4bb] trouble with protein storage

2009-11-18 Thread LEDU Marie-Helene 161111
Hello, Sorry for the unrelated question. We encounter important storage problem of our favorite protein. We can not freeze it without a lost of 50 to 90 %, and can not use glycerol without precipitation. Would anybody have suggestions or references that could help us ? Thanks a lot in advance.