[ccp4bb] selenomethionine contact

2011-06-28 Thread Alexander U. Singer
Hi -- I have a case in which I have a refined structure in which the 'so-far' measured distance between the Se atom of a selenomethionine and its crystallographic neighbouring Se atom (same residue) is 2.9 A, and I see continuous density between the two atoms. Has anyone subscribing to

Re: [ccp4bb] selenomethionine contact

2011-06-28 Thread Jacob Keller
Sounds to me like an artifact of the two-fold (I think there must be one between the two atoms if it is the same residue?). I think things get dicey near the symmetry axes... JPK On Tue, Jun 28, 2011 at 6:25 PM, Alexander U. Singer alexander.sin...@utoronto.ca wrote: Hi -- I have a case in