[ccp4bb] See Jiang and Sweet ......Re: [ccp4bb] Structures determined: breakdown of methods

2011-01-16 Thread Jrh
Dear Rex, A very informative and careful analysis to help your question be answered can be found In Jiang and Sweet JSR 2004, 11, 319-327. Greetings, John Prof John R Helliwell DSc On 15 Jan 2011, at 20:28, REX PALMER rex.pal...@btinternet.com wrote: Does anyone know of a statistical

Re: [ccp4bb] See Jiang and Sweet ......Re: [ccp4bb] Structures determined: breakdown of methods

2011-01-16 Thread Robert Sweet
Thanks, John. Of course whatever Jiang and I put in that paper is pretty old. The PDB have been taking care of the Jiang and Sweet archive for some years. They completely rewrote the code, and they have added some searches. The catch in this case is that they are only synchrotron-based

Re: [ccp4bb] Do carbon scattering include hydrogen

2011-01-16 Thread Eleanor Dodson
Hmm - there are some hydrogens which are simply not fixable from chemistry, or electron density at low (ie 1.5A!) resolution - any of us who have looked in vain for them can testify to that - and I cant think that it is good to add in scatterers when you dont know where they are. The ones