[Chimera-users] new feature: conversion of atomic coordinates to electron density map

Tom Goddard goddard at cgl.ucsf.edu
Tue Apr 17 11:36:24 PDT 2007

Hi Thomas,

  There is a Chimera extension that produces an MRC density map from a 
PDB file.  It is part of the Analysis of Intermediate Resolution 
Structures (AIRS) toolkit that is distributed with the EM single article 
reconstruction package EMAN1.


If you install EMAN and configure Chimera to find the EMAN / Chimera 
extensions as described here


then there will be  a Chimera menu entry Tools / AIRS / PDB to MRC.  It 
allows you to specify a resolution and number of angstroms  per pixel 
for the map.

  This is a good bit of work to setup and I plan on including the 
ability to make a density map from a PDB model directly in Chimera 
distributions in the future.  It will use a Gaussian for each atom.  
I'll add this to my list of requested Chimera features.


  Thanks for the suggestion.


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