On Sunday 07 March 2010, Ethan Merritt wrote: > On Sunday 07 March 2010, Chunmin L wrote: > > Dear All, > > > > We are trying to solve a protein structure by molecular replacement. > > The protein crystal has unit cell dimensions of a=50 b=51 c=252, > > alpha=90 beta=90.4 gamma=90. > > > We processed the data both as P21 (two molecules in A. U.) > > OK > > > and P21212 (one molecule in A. U.). > > What about the other possible orthorhombic spacegroups? > You need to try at least > P212121 > P22121 > P21221 > You should at the least try that 3rd one, since it is the equivalent > to your P21 setting.
Oops. I meant to say that the symmetry of the 3rd one is _not_ a superset of your P21 setting.
