[chimerax-users] Equivalent of surface colour by radius in tools/Volume viewer of Chimera

[Elaine Meng]

Hi Shabih,
There is no ESP calculation tool or interface in ChimeraX, but you can open a pre-existing .phi file (from DelPhi academic or GRASP), .grd file (from UHBD), or .dx file (from APBS) e.g. to use it to color a molecular surface by map values.

ChimeraX input map formats:
<http://rbvi.ucsf.edu/chimerax/docs/user/commands/open.html#volume>

Regards,
Elaine

> On Apr 17, 2018, at 11:47 AM, Shabih Shakeel <sshakeel at mrc-lmb.cam.ac.uk> wrote:
> 
> Hi Elaine,
> 
> Thanks a lot for the information. 
> Is it possible to calculate electrostatic potential within ChimeraX or load Delhpi files?
> 
> Thanks.
> 
> Regards,
> Shabih
> 
>> On 17 Apr 2018, at 16:22, Elaine Meng <meng at cgl.ucsf.edu> wrote:
>> 
>> Hi Shabih,
>> Sorry, not yet.  There is coloring by map value and by zone (to match nearby atoms or markers), but coloring by distance (radial, topographic height) is not yet implemented in ChimeraX.
>> <http://rbvi.ucsf.edu/chimerax/docs/user/commands/color.html>
>> 
>> Regards,
>> Elaine
>> -----
>> Elaine C. Meng, Ph.D.                       
>> UCSF Chimera(X) team
>> Department of Pharmaceutical Chemistry
>> University of California, San Francisco
>> 
>> 
>>> On Apr 17, 2018, at 4:35 AM, Shabih Shakeel <sshakeel at mrc-lmb.cam.ac.uk> wrote:
>>> 
>>> Hi,
>>> In ChimeraX, is there an equivalent of surface colour by radius in tools/Volume viewer of Chimera? I would like to colour an EM density map of a virus from its centre to the outside of the capsid with direct colour range in ChimeraX.
>>> Thanks.
>>> Regards,
>>> Shabih
>> 
> 
> 
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