Re: [ccp4bb] S-nitrosylation protein

2013-02-14 Thread Savvas Savvides
Dear Uma, A very complehensive survey of the state-of-the-art in this topic can be found in the following literature resources: (1) Garman EF. Radiation damage in macromolecular crystallography: what is it and why should we care? Acta Crystallogr D Biol Crystallogr. 2010 Apr;66(Pt 4):339-51.

Re: [ccp4bb] S-nitrosylation protein

2013-02-14 Thread Fischmann, Thierry
Collect small slices of data (instead of a complete data set) on several crystals then merge the data together to get a full data set. The slices of must be small enough so that the damage to the S-NO group is still very limited on each slice. You may have to play with beam attenuation a bit,

Re: [ccp4bb] S-nitrosylation protein

2013-02-14 Thread Uma Ratu
Dear All: Many thanks for your commoents and advice. I will keep them in mind. Uma On Thu, Feb 14, 2013 at 7:54 AM, Fischmann, Thierry thierry.fischm...@merck.com wrote: Collect small slices of data (instead of a complete data set) on several crystals then merge the data together to get a

Re: [ccp4bb] S-nitrosylation protein

2013-02-13 Thread Ed. Pozharski
Maybe you can try different energies hoping that damage is wavelength dependent.  It must be dose dependent though, so you may consider merging short sweeps from multiple crystals. Original message From: Uma Ratu rosiso2...@gmail.com Date: To: CCP4BB@JISCMAIL.AC.UK