On Wed, 2011-03-16 at 11:32 -0400, Zhang yu wrote:
Could someone tell me why HKL2000 couldn't find the correct C2 SP?
Who knows. In my experience, autoindexing in denzo is sometimes finicky. Most tricks alter the set of peaks used for indexing, by restricting resolution, increasing/decreasing their number, even changing the spot radius. Since denzo picked a much larger unit cell, it may have been swayed by spots from a satellite crystal. In this case, the Patterson clearly indicated which space group is right, but you may have avoided the problem by running your images by another indexing program. LabelIT is, imho, a particularly robuts tool. I am sure mosflm and/or xds could have worked too. Wish you to find the DNA in your maps, Ed. -- "I'd jump in myself, if I weren't so good at whistling." Julian, King of Lemurs