[Chimera-users] displaying electrostatic field

Elaine Meng meng at cgl.ucsf.edu
Fri Jan 10 09:58:13 PST 2014


Hi Bala,
There is no option to show cones like in the left panel of Fig 22, but for the electric field lines in the right panel, see command "measure fieldLines":
<http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/midas/measure.html#fieldLines>

There is an example image in the Chimera Image Gallery:
<http://www.rbvi.ucsf.edu/chimera/ImageGallery/entries/fieldlines/fieldlines.html>

Showing field lines requires already having an electrostatic potential map, which can be calculated in other programs outside of Chimera, or via Chimera with the PDB2PQR and APBS tools as in the last section of the "surface properties" image tutorial:
<http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/tutorials/surfprop.html#esp2>

I hope this helps,
Elaine
-----
Elaine C. Meng, Ph.D.                       
UCSF Computer Graphics Lab (Chimera team) and Babbitt Lab
Department of Pharmaceutical Chemistry
University of California, San Francisco

On Jan 10, 2014, at 2:26 AM, Bala subramanian wrote:

> Friends,
> Kindly see the following link (Fig 22, left panel). 
> 
> http://www.bioscience.org/2009/v14/af/3398/fulltext.php?bframe=figures.htm
> 
> Has anyone tried making the display of electric field in Chimera. Is there any way i can make the same in chimera.
> Thanks,
> Bala




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