[PyMOL] ccp4 question

2014-02-04 Thread Stefan Ivanov
Dear Pymolers,

I tried to run ncont on a pdb structure and got a .ncont file as output, but 
the only thing the file contains is an error message (see below). I tried 
copying default.def into the working directory, but couldn't get the darn thing 
to work. If someone can help I'd appreciate it.

--

 CCP4 library signal ccp4_general:Cannot open default.def (Error)
 raised in ccp4fyp 
 
 ###
 ###
 ###
 ### CCP4 6.4: NCONTversion 6.4 : ##
 ###
 User: unknown  Run date:  3/ 2/2014 Run time: 16:00:09 


 Please reference: Collaborative Computational Project, Number 4. 1994.
 The CCP4 Suite: Programs for Protein Crystallography. Acta Cryst. D50, 
760-763.
 as well as any specific reference in the program write-up.


 --

 * ERROR #40 READ:

 Logical file name not found.

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Re: [PyMOL] ccp4 question

2014-02-04 Thread Robert Campbell
Dear Stefan,

On Tue, 2014-02-04 14:44  EST,  Stefan Ivanov
stefan.iva...@postgrad.manchester.ac.uk wrote:

 Dear Pymolers,
 
 I tried to run ncont on a pdb structure and got a .ncont file as output,
 but the only thing the file contains is an error message (see below). I
 tried copying default.def into the working directory, but couldn't get
 the darn thing to work. If someone can help I'd appreciate it.

You might have better luck asking on the ccp4bb, but I'll try to answer...

 --
 
  CCP4 library signal ccp4_general:Cannot open default.def (Error)
raised in ccp4fyp 
  
  ###
  ###
  ###
  ### CCP4 6.4: NCONTversion 6.4 : ##
  ###
  User: unknown  Run date:  3/ 2/2014 Run time: 16:00:09 
 
 
  Please reference: Collaborative Computational Project, Number 4. 1994.
  The CCP4 Suite: Programs for Protein Crystallography. Acta Cryst. D50,
 760-763. as well as any specific reference in the program write-up.
 
 
  
 --
 
  * ERROR #40 READ:
 
  Logical file name not found.

You haven't told us how you tried to run it, but the error tells you
that it is not finding your .pdb file.  Did you run it on the command
line?  If so, did you type something like:

ncont xyzin file.pdb

The standard command line format for CCP4 programs is such that coordinate
files are indicated by the xyzin (and xyzout) logical names. 

It can also be run from the ccp4i interface. Did you try that?

Cheers,
Rob

-- 
Robert L. Campbell, Ph.D.
Senior Research Associate/Adjunct Assistant Professor
Dept. of Biomedical  Molecular Sciences
Botterell Hall Rm 644
Queen's University, 
Kingston, ON K7L 3N6  Canada
Tel: 613-533-6821
robert.campb...@queensu.cahttp://pldserver1.biochem.queensu.ca/~rlc

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[PyMOL] arbitrary distance label for atom pair

2014-02-04 Thread Richard Smith
Hi,

Is there an easy way to change the label on a distance object to some
arbitrary string?

I would like a line connecting two atoms with an arbitrary label
at the midpoint between the two atoms.

for example:
#make atom pair selection
distance d, (id 3651, id 3691) # actual distance = 2.00

#replace 2.00 with 100%  # or any other string
label d, 100%



Thanks.

-- 
---
Regards
Richard Smith

Research Associate
Department of Zoology
Smith Research Group
University of Cambridge
Downing Street
Cambridge CB2 3EJ

Tel.: +44 (0)1223 330933


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Re: [PyMOL] arbitrary distance label for atom pair

2014-02-04 Thread Jason Vertrees
Richard,

The PyMOL team was just discussing this a few days back. Sadly, there
is no way to do this using standard labels.

If you have Incentive PyMOL v1.7 you can use the new callout command
(http://pymol.org/dsc/dokuwiki/doku.php?id=command:callout). Otherwise
you can use the pseudoatom
(http://www.pymolwiki.org/index.php/Pseudoatom) as a label:

# create a single ala

frag ala

# create a labeled distance

dist 2/N, 2/O

# hide the labels

hide labels

# create a new label at the center of the selection

pseudoatom new_label, (2/N or 2/O), label=Some arbitrary label here: \316\261

orient


Cheers,

-- Jason

On Tue, Feb 4, 2014 at 10:07 AM, Richard Smith re...@cam.ac.uk wrote:
 Hi,

 Is there an easy way to change the label on a distance object to some
 arbitrary string?

 I would like a line connecting two atoms with an arbitrary label
 at the midpoint between the two atoms.

 for example:
 #make atom pair selection
 distance d, (id 3651, id 3691) # actual distance = 2.00

 #replace 2.00 with 100%  # or any other string
 label d, 100%



 Thanks.

 --
 ---
 Regards
 Richard Smith

 Research Associate
 Department of Zoology
 Smith Research Group
 University of Cambridge
 Downing Street
 Cambridge CB2 3EJ

 Tel.: +44 (0)1223 330933


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-- 
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Director of Core Modeling Products
Schrödinger, Inc.

(e) jason.vertr...@schrodinger.com
(o) +1 (603) 374-7120

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[PyMOL] PyMOL on Coursera

2014-02-04 Thread Jason Vertrees
Greetings,

I am happy to report that PyMOL will be used in a structural
biolnformatics lab of
an upcoming Coursera course, Bioinformatic Methods 2, taught by Nicholas Provart
of the University of Toronto. The enrollment for these courses can typically be
in the tens of thousands or more. If you would like to learn more
about this free
online course visit https://www.coursera.org/course/bioinfomethods2.

Cheers,

-- Jason

-- 
Jason Vertrees, PhD
Director of Core Modeling Products
Schrödinger, Inc.

(e) jason.vertr...@schrodinger.com
(o) +1 (603) 374-7120

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[PyMOL] script with arguments.

2014-02-04 Thread Yarrow Madrona
Hello,

I am making a script that loads in two molecules as arguments in the
command line. I want to then align these molecules and make a pretty
picture of the molecules that were input as arguments in the comand line
but I am not sure how to name them as objects. I don't know how to select
the new objects because they will have different names depending on the
inputed arguments. My attempt is below.

-Yarrow
--

from sys import argv
my_argv = argv[1:]
print my_argv[0], my_argv[1]

from pymol import cmd, stored

def align_heme(arg1, arg2 ):
cmd.load(arg1)
cmd.load(arg2)
cmd.create(obj1, arg1)  #I know this line won't work. I need to use
the#object name. but it depends
on the input.
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Re: [PyMOL] script with arguments.

2014-02-04 Thread Jordan Willis
Oh, I see what your saying. This is a python question.

from sys import argv

c_arg1 = argv[1]
c_arg2 = argv[2]

from pymol import cmd, stored 

def align_heme(arg1, arg2 ):
cmd.load(arg1)
cmd.load(arg2)
cmd align(arg1,arg2)
#cmd.create(obj1, arg1) #There is no need to create an object here.

align_heme(c_arg1,c_arg2)





On Feb 4, 2014, at 6:57 PM, Yarrow Madrona amadr...@uci.edu wrote:

 Hello,
 
 I am making a script that loads in two molecules as arguments in the command 
 line. I want to then align these molecules and make a pretty picture of the 
 molecules that were input as arguments in the comand line but I am not sure 
 how to name them as objects. I don't know how to select the new objects 
 because they will have different names depending on the inputed arguments. My 
 attempt is below.
 
 -Yarrow
 --
 
 from sys import argv
 my_argv = argv[1:]
 print my_argv[0], my_argv[1]
 
 from pymol import cmd, stored 
 
 def align_heme(arg1, arg2 ):
   cmd.load(arg1)
   cmd.load(arg2)
 cmd.create(obj1, arg1)  #I know this line won't work. I need to use 
 the#object name. but it depends 
 on the input.
 
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