[phenixbb] Stretched Maps

Pavel Afonine pafonine at lbl.gov
Wed Oct 20 12:33:35 PDT 2010

  Hi Joel,

it used to be the known issue for some rare cases until I fixed it a few 
months ago. So:

1) could you please try the latest PHENIX from nightly builds and see if 
you still have this problem:


2) if you still have this problem even using the latest PHENIX, then 
please send me the data and model (and, optionally the command you used 
that lead to these maps) and I will investigate.


On 10/20/10 11:58 AM, Joel Weadge wrote:
> Hi all,
> I have just finished doing molecular replacement and an initial round 
> of refinement (with simulated annealing) on a number of different 
> datasets. They have all be straightforward since most of them are 
> either point mutants and/or co-crystal structures. However, two of the 
> structures are giving me some trouble. The data appears to be of good 
> quality and resolution (2.25 and 2.55Å). The MR proceeds as normal 
> with good scores and then in the subsequent round of refinement the 
> maps (2Fo-Fc and Fo-Fc) look strange. The density is stretched or 
> flattened in one direction. Can anyone help me with what I may be 
> overlooking?
> Thanks in advance
> JW

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