[Chimera-users] Daily build requirements

Eric Pettersen pett at cgl.ucsf.edu
Wed Mar 31 17:25:30 PDT 2010

On Mar 31, 2010, at 4:34 PM, sherden at caltech.edu wrote:

>  So to get thermal ellipsoids to display from a .cif file (as  
> opposed to
> a .pdb) it looks like I need version 1.50 or greater of Chimera, but  
> it
> looks like versions of Chimera above 1.4x don't seem to run on my  
> Mac (I
> have system 10.4.11).  What OSX system version do I need so that I can
> run a version of chimera that I can get thermal ellipsoids to display
> from a .cif file?  Or, conversely is there a way I can get one of the
> more recent daily builds to run on OSX system 10.4.11?

Hi Nat,
	As you just encountered, the Chimera 1.4 series of releases are the  
last to support OS X 10.4.  So you can't run Chimera 1.5+ without  
upgrading your OS X.  Nonetheless, the changes made to support thermal  
ellipsoids in CIF files were all in the Python layer, so you should be  
able to drop a Python file with the changes into your 1.4 distribution  
and I think it should just work.  I've attached the relevant file  
(__init__.py).  You need to put it inside your 1.4 version of  
Chimera.  Do this by right-clicking on the Chimera app in your Finder  
and choosing "Show Package Contents" from the popup menu.  This will  
bring up a new Finder window.  Navigate to Contents/Resources/share/ 
mmCIF.  Replace the __init__.py file in there with the attached  
__init__.py.  Restart Chimera and cross your fingers.
	Despite this possibly working I recommend upgrading to the 1.5  
release whenever feasible since there are some nice improvements in  
the Thermal Ellipsoids tool that you will otherwise be missing.


                         Eric Pettersen
                         UCSF Computer Graphics Lab

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