[Chimera-users] seelction around map

Dhiraj Srivastava dhirajks at gmail.com
Fri Sep 7 14:31:18 PDT 2007

Hi all
       actually my problem is that i have a channel and a ccp4 map of this
channel. now i want to see residue lining the channel (around 3.2 A of
channel or map) and not anything else. how ever this methods is selecting
everything outside channel. how can i restrict this selection to only 3.2 A
of map or channel.


On 9/7/07, Tom Goddard <goddard at cgl.ucsf.edu> wrote:
> Hi Dhiraj,
> You can select just the atoms in a map with some Chimera black magic.
> There is a keyboard shortcut "oa" that restricts the currently selected
> set of atoms to those that are above the threshold level of the volume
> data set shown in the volume dialog.  If you start by selecting all
> atoms (menu Select / Select All or shortcut "sa") then use "oa" then you
> have the atoms outside the map selected, then invert the selection (menu
> Select / Invert or shortcut "is").  These Chimera shortcuts need to be
> enabled using menu entry Tools / General Controls / Accelerators On, and
> then you can type the two letter key sequences into the main Chimera
> window.
> Here's a list of other shortcuts.
> http://www.cgl.ucsf.edu/chimera/docs/ContributedSoftware/accelerators/alist.html
> Tom

Dhiraj K. Srivastava
Department of Chemistry
University of Missouri-Columbia
MO, 65211
Ph. no. 001-573-639-0153
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