[Chimera-users] Selecting certain atoms with exception

Kelvin Lau kelvin.lau at unige.ch
Tue Mar 14 12:47:06 PDT 2017

Thanks for the commands. The latter works great!

Kelvin Lau 
Structural Plant Biology Laboratory 
Department of Botany and Plant Biology 
Science III 
University of Geneva 
30 Quai E. Ansermet 
1211 Geneva 
Email: kelvin.lau at unige.ch 
Phone: +41 22 379 3026
From: Elaine Meng <meng at cgl.ucsf.edu>
Sent: Tuesday, March 14, 2017 17:21
Subject: Re: [Chimera-users] Selecting certain atoms with exception
To: Kelvin Lau <kelvin.lau at unige.ch>
Cc:  <chimera-users at cgl.ucsf.edu>

Hi Kelvin,
You could do it in two commands, which may be easier conceptually:

select :trp
~sel :285

To do it in a single command, you’d use something like this (logical “and not”):

select :trp &  ~  :285

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

> On Mar 14, 2017, at 2:37 AM, Kelvin Lau <Kelvin.Lau at unige.ch> wrote:
> Dear Chimera users,
> I'm trying to do the following:
> -select all the atoms of a single residue (trp)
> -except for one (residue number 285)
> I am not sure how to use a negation command to leave out only 285. Any ideas?
> Cheers
> Kelvin

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