[Chimera-users] Unable to save file in pdb

Neha Goel nehagoel24march at gmail.com
Mon May 10 12:19:46 PDT 2021

Dear Elaine,

Thank you for your reply. When I am trying to fit model using reference
pdb. I am not getting appropriate response. Because my reference pdb has
only 11 chains while my protein has more than this. Kindly suggest some
person who can help me with this. I will be heartily thankful to you

Neha Goel

On Mon, 10 May 2021, 20:51 Elaine Meng, <meng at cgl.ucsf.edu> wrote:

> Hi Neha,
> An MRC file is a density map format.  You cannot save it as an atomic
> model, because it does not contain atomic coordinates.
> There is no tool in Chimera to create atomic structure instantly from a
> map.   Researchers use various programs to build atomic structures into a
> map or to build an atomic model separately and then fit it into a map, but
> it is generally an interactive process that takes many steps.  I am not an
> expert on this process, but you could read hundreds of research papers
> "Methods" sections to see descriptions of the ways in which it is done.
> Regards,
> Elaine
> -----
> Elaine C. Meng, Ph.D.
> UCSF Chimera(X) team
> Department of Pharmaceutical Chemistry
> University of California, San Francisco
> > On May 10, 2021, at 10:24 AM, Neha Goel <nehagoel24march at gmail.com>
> wrote:
> >
> > Dear Chimera,
> > I have a .mrc file. I reopened the file in chimera and would like to
> save it in pdb. I am unable to save it. It needed the molecular model pdb.
> Kindly guide me the way to save it.
> > Regards
> > Neha Goel
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