Dear Zhihai Li, Given the relative lack of information supplied - can I just ask a quick crystallography question : how did you phase the data? If you obtained phases from MIR or MAD, are you sure you are using the correct hand of the map?
Dave On 25 Feb 2014 01:45, "李智海" <21620101152...@stu.xmu.edu.cn> wrote: > I am working on refining a model in electron density map using COOT. The > hardware works wonderful, but when i fit some amino acid residues in a > helix ,it turns out to be a left-hand one ! I know it’s a wrong one. what’s > going on here? is there any parameters should be changed to correct it ? > > Thanks! > > Zhihai Li > > School of Life Sciences, Xiamen University. > Xiang'an Raod(South), Xiang'an District, Xiamen City, > Fujian Province, China. 361102 >
