You need to say what the cell dimensions are for these 2 options.. Eleanor
On 29 May 2012 15:59, Andrey Lebedev <[email protected]> wrote: > Hi Mike. > > I would be more careful about "incorrect" space group. Yes, sometimes > auto-indexing gives strange results. > However, in your case two sets of crystals differ by two factors, > diffraction quality and space group. > Therefore it seems more likely that you have two crystal forms. > Could you please send me log-files from pointless or ctruncate? Then I > would be able to say something more definite. > > Regards > > Andrey > > On 28 May 2012, at 08:46, Mike John wrote: > > Hi, All, > > we got many datasets from crystals of our protein. when the crystal has > high quality, it will be indexed as F23 (correct space group). While > diffracting poorer, it will be indexed as incorrect space group P4132. The > crystals are twined. My question is: > Given twinning, why the correct space group F23 will be indexed as an > incorrect space group P4132 for most of our crystals (most crystals has > poorer quality)? Theoretical analysis of twin operator and symmetry > operator to connect F23 and P4132 would be highly appreciated. Thanks > > Mike >
