These are boolean "and" and "or".

"chain A and resid 1" selects all atoms with resid 1 in chain A, but not any atoms in chain B.

"chain A or chain B" selects all atoms in chain A and (regular language) all atoms in chain B.

Once you get use to it it makes total sense.

Ralf

On Thu, Mar 22, 2012 at 1:04 AM, Alexander Batyuk <[email protected]> wrote:

Dear Nat,

Does that mean in your selection example that both chain A and chain C will be refined with anisotropic ADP or either one or another? I'm a bit confused with selection operator "or". And I was trying to put "and", which did not work.

Best wishes,

Alex


On 21 Mar 2012, at 18:55, Nathaniel Echols wrote:

> On Wed, Mar 21, 2012 at 10:48 AM, Alexander Batyuk <[email protected]> wrote:
>> Thank you, I'm trying to do a refinement in GUI and had to look up something in docs. Actually, I was looking for how to select say, chain A with residues 1-10 and all chain C for anisotropic ADP refinement in GUI? It seems that I can select only one chain with certain residues but not two.. Could you point me to the right direction, please?
>
> Hmm, not sure why this wouldn't work.  Are you using the graphical
> editor or typing in the selection manually?  The editor seems to work
> fine in "select range" mode (see image attached).  The selection
> syntax is pretty simple too:
>
> (chain A and resseq 1:10) or (chain C)
>
> -Nat
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--
Alex Batyuk
The Plueckthun Lab
www.bioc.uzh.ch/plueckthun

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