On 16 Nov 2010, at 13:22, Paul Emsley wrote: > Dear Phil, > > Sorry for the delay, I am only just back from somewhat extensive travels. > > On 01/11/10 12:26, Phil Evans wrote: >> If I "colour by chain" (my preferred option), metal ions disappear > > Thanks for the notification of this bug. It is fixed now, rev 3245.
thanks > >> also is there any way of refining a zone around a metal ion without the >> sidechains vanishing into the metal density? I know the refine-by-sphere >> ("R") option works better, but then I have no control over what I'm refining >> > > Sphere refine is simply a thin layer around the refine-residues function > which takes a list of residue specs - that gives you enough control, I hope. > (You can also trivially change the "radius" in sphere refine.) > > Paul. How do you change the radius? I had a long chat to Bernhard about this. My feeling is that in order to avoid "user consternation" ((c) George Sheldrick), RS refinement in Coot should _never_ move something into space already occupied by another part of the same molecule (zero occupancy excepted). I realise there are implementation difficulties, but I do think this is a major problem. Phil