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Well - if you reindex k,l,h then your cell will be more or less the same as theirs. But that moves the 2 fold axis. If your space group is truly P21212 with those cell dimensions then it would become P21 2 21 However maybe you just know the point group? Check the absences Eleanor U Sam wrote: > Hi > I crystallized a protein in different condition than reported before > and structure had been already reported by other group. In both cases > space group is P21 21 2 > Right now I am not interested in solving the structure, but to look > for some other properties. > I see a difference in cell dimension as follows. > Reported structure > a = 96.54 > b = 121.95 > c = 75.33 > > For my crystal > a = 75.03 > b = 96.50 > c = 121.98 > > This the cell dimensions are ~equal in lengths but are associated with > different axis compare to the reported crysta structure. I used > HKL2000 for indexing. > I would like to know why the above difference in cell dimensions. > Is there any way I can index my data which would give cell parameters > of reported structure? > thanks in advance for any suggestion/comments. > sam > > _________________________________________________________________ > Find a local pizza place, movie theater, and more….then map the best > route! http://maps.live.com/?icid=hmtag1&FORM=MGAC01 > > >