Re: [ccp4bb] strange P21 cell dimensions

2011-02-18 Thread Ralf W. Grosse-Kunstleve
Hi Peter, > I have a P21 case with some strange ratios in the cell dimensions : > a, b=a, c=1.5a, 90, 105, 90. The native patterson shows a strong > peak (40% of origin) at (x,0.5,0) indicating some pseudo symmetry. > Such cell dimension and peak prompted me to think that the actual > space group

Re: [ccp4bb] strange P21 cell dimensions

2011-02-18 Thread Tim Gruene
Hello Peter, The easiest way to find out whether XDS is wrong or not is to provide XDS with the other space group and cell and see how the data merge. Tim On Thu, Feb 17, 2011 at 09:35:00PM +, Peter Grey wrote: > Dear CCP4 and XDS users, > > I have a P21 case with some strange ratios in the

Re: [ccp4bb] strange P21 cell dimensions

2011-02-17 Thread Eleanor Dodson
On 02/17/2011 09:35 PM, Peter Grey wrote: Dear CCP4 and XDS users, I have a P21 case with some strange ratios in the cell dimensions : a, b=a, c=1.5a, 90, 105, 90. The native patterson shows a strong peak (40% of origin) at (x,0.5,0) indicating some pseudo symmetry. Such cell dimension and peak

[ccp4bb] strange P21 cell dimensions

2011-02-17 Thread Peter Grey
Dear CCP4 and XDS users, I have a P21 case with some strange ratios in the cell dimensions : a, b=a, c=1.5a, 90, 105, 90. The native patterson shows a strong peak (40% of origin) at (x,0.5,0) indicating some pseudo symmetry. Such cell dimension and peak prompted me to think that the actual space