Hi Paul,

After loading the MTZ file, did any objects show up in the panel on the right? 
If PyMOL detects columns for 2fofc and/or fofc maps, and the file is named 
"foo.mtz", then you should get "foo.2fofc" and "foo.fofc" maps. Use one of 
these maps as the second argument to volume (or isomesh). If automatic column 
detection fails, use a loading option with manual column selection.

Summary of MTZ loading options:

1) Command line with column auto detection for 2fofc and fofc:
   load file.mtz
2) Command line with manual column selections:
   load_mtz file.mtz, mapname, FP, PHIC
3) GUI, opens MTZ import dialog:
   File > Open ...

In each case you should get one or more map objects, which you can use with 
volume or isomesh in the next step to get a visualization.


> On Apr 16, 2018, at 11:18 AM, Paul Miller <p...@strubi.ox.ac.uk> wrote:
> Hi
> I'm using Windows Pymol 2.0 and would like to show mtz (NOT ccp4!) file 2fofc 
> density around a ligand. Can anyone tell me how to do this?
> I found info on a website (below), which I modified in various ways but it 
> didn't work. Kept saying the some.2fofc file was not found.
> volume abc, some.2fofc, 0, organic, 4., 1, 4
> Cheers, Paul
> Paul Steven Miller (PhD) 
> Postdoctoral Researcher 
> University of Oxford 
> Wellcome Trust Centre for Human Genetics 
> Division of Structural Biology 
> Roosevelt Drive 
> Oxford 
> OX3 7BN

Thomas Holder
PyMOL Principal Developer
Schrödinger, Inc.

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