[ccp4bb] P212121 with strong Patterson peak at 0.5, 0.5, 0.5

2015-02-17 Thread Jayakrishnan Nandakumar User
We have data at ~3.2 A for a crystal that looked clearly like primitive orthorhombic while indexing in HKL2000 (or Mosflm). Based on the systematic absences I called it P212121 during scaling. However, we are having some unexpected issues with finding a Mol. Rep. solution using a model that is pres

Re: [ccp4bb] P212121 with strong Patterson peak at 0.5, 0.5, 0.5

2015-02-17 Thread Simon Jenni
Hi JK, we recently worked on a crystal with similar symmetry and I would recommend you to read the two papers listed below. If you visually do see the "weak" reflections, the space group is primitive orthorhombic (and not body-centered orthorhombic). The strong Patterson peak at ~0.5, ~0.5, ~0.5 r