Just to follow up, the paper that was attached is based on the far more 
original work by Garman and Mitchell

Elspeth Garman and Edward Mitchell. (1996) Glycerol concentrations required for 
cryoprotection of 50 typical protein crystallisation solutions. J.Appl. Cryst. 
29, 584-587.

And there is also a further paper

Glycerol concentrations required for the successful vitrification of cocktail 
conditions in a high-throughput crystallization screen.Kempkes R, Stofko E, Lam 
K, Snell EH.(2003) Acta Cryst D 64, 287-301.

There are a few other papers on high salt concentrations as a cryoprotectant 
including:

Todd Holyoak, Timothy D. Fenn, Mark A. Wilson, Aaron G. Moulin, Dagmar Ringe 
and Gregory A. Petsko. (2003) Malonate: a versatile cryoprotectant and 
stabilizing solution for salt-grown macromolecular crystals. Acta D. 59, 
2356-2358.

Cheers,

Eddie.

Edward Snell Ph.D.
Assistant Prof. Department of Structural Biology, SUNY Buffalo,
Senior Scientist, Hauptman-Woodward Medical Research Institute
700 Ellicott Street, Buffalo, NY 14203-1102
Phone:     (716) 898 8631         Fax: (716) 898 8660 
Skype:      eddie.snell                 Email: [email protected]  
Telepathy: 42.2 GHz

Heisenberg was probably here!


-----Original Message-----
From: CCP4 bulletin board [mailto:[email protected]] On Behalf Of Thibaut 
Crepin
Sent: Thursday, May 23, 2013 6:24 AM
To: [email protected]
Subject: Re: [ccp4bb] cryo condition

Dear Faisal,

this paper can be really useful.

Regards
Thibaut


On 23/05/2013 11:42, Faisal Tarique wrote:
>
> Dear all
>
> Can anybody tell me the appropriate cryo condition for the crystals 
> obtained in 2M Ammonium sulphate and tris pH8.5..I tried to add 10% 
> glycerol to it but still the ice ring is forming..
>
> Thanx in advance
> --
> Regards
>
> Faisal
> School of Life Sciences
> JNU

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