Re: [ccp4bb] peculiar twinning case

2010-10-17 Thread Gerard Bricogne
Dear Ed, You might well have a case of something called "lattice-translocation disorder", which is indeed an intermediate type of disorder with partially coherent interference between crystal domains related by non-lattice translations. Take a look at a recent paper on the subject (for instan

[ccp4bb] peculiar twinning case

2010-10-15 Thread Ed Pozharski
A couple of twinning-related questions. I have a protein-DNA complex in P65. Protein binds DNA as a dimer, DNA itself is not palindromic and has sticky ends located asymmetrically with respect to the protein (dimer). DNA contains a single fluoro-uracil which is flipped into the active site. Thi