Hi Katherine,
You explain some of how you want to do it, but you don't explain what
you're trying to do. What is the objective? It may well be that there's an
easier way. As a sidenote, create can also make an object with multiple
states. Check the help.
Hope it helps,
Tsjerk
On Wed, Dec 18, 2013 at 10:57 PM, Katherine Sippel <
katherine.sip...@gmail.com> wrote:
> Hi all,
>
> I'm trying to load biological assemblies into my script. From old
> bulletin board messages I figured out that multiplex=1 would output the
> biological assembly as different states and objects. I worked out that
> cmd.group() would give a single object with multiple states. Then
> cmd.create() would make one object with one state. Unfortunately if you
> group a monomer with one state it gives you a selection of 0 atoms. There
> is a whole bunch of arithmetic on the back end of the script crashes with a
> divide by zero error for the monomeric ones. I thought I'd be smart and use
> count_states to build a conditional loop but I don't think I"m using it
> correctly because it isn't passing the multiple states into the loop.
>
> Is there some requirement that I'm missing or not seeing here?
>
> This might be easier to explain if I snip from scripts...
>
> #Outputs the monomers correctly but doesn't account for the biological
> assembly so I get false negatives
>
> cmd.set("all_states", 1)
> for file in glob("*.pdb1"):
> cmd.load(file,'prot')
> cmd.select('allLigands', "het and (not resn HOH)") etc.
>
> #Outputs the multimers correctly but gives a divide by zero error for the
> monomers
>
> cmd.set("all_states", 1)
> for file in glob("*.pdb1"):
> cmd.load(file,'prot', multiplex =1)
> cmd.group('ens', 'prot'+'*')
> cmd.create('BA', 'ens')
> cmd.select('allLigands', "het and (not resn HOH)") etc.
>
> #Outputs the monomers correctly but doesn't pass multimers into the
> conditional loop. I've also tried moving the cmd.group() before the if
> loop. That didn't work either.
>
> cmd.set("all_states", 1)
> for file in glob("*.pdb1"):
> cmd.load(file,'prot', multiplex=1)
> if cmd.count_states('prot') > 1:
> cmd.group('ens', 'prot')
> cmd.create('BA', 'ens')
> cmd.delete('ens')
> cmd.select('allLigands', "het and (not resn HOH)") etc.
>
> Any help would be appreciated. I swear this is the last time I'll bother
> you. Thanks again.
> Katherine
>
>
>
> --
> "Nil illegitimo carborundum"* - *Didactylos
>
>
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--
Tsjerk A. Wassenaar, Ph.D.
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