Hi Matt,

I just double-checked, this was a major refactoring of the dynamic_measures 
setting which didn't make it into Open-Source PyMOL yet. So if you don't have 
access to Incentive PyMOL, then please use the workarounds.

Cheers,
  Thomas

On 27 Aug 2014, at 11:25, Matthew Baumgartner <mp...@pitt.edu> wrote:
> Hi,
> I am running version 1.7.2.1 from the svn (revision 4088) and the bug 
> with dynamic_measures persists. Unsetting it as in that link corrects 
> that issue though.
> 
> I can send you my files that find the error if you would like.
> 
> Matt
> 
> On 08/27/2014 11:19 AM, Thomas Holder wrote:
>> Hi Matt,
>> 
>> this was a bug with the dynamic_measures setting. It was fixed in PyMOL 
>> 1.7.0. So please upgrade PyMOL or read this old post for workarounds:
>> 
>> http://sourceforge.net/p/pymol/mailman/pymol-users/thread/501949e8.2080...@users.sourceforge.net/
>> 
>> Cheers,
>>   Thomas
>> 
>> On 27 Aug 2014, at 10:30, Matthew Baumgartner <mp...@pitt.edu> wrote:
>> 
>>> Hi,
>>> I ran into a bug with the find polar contacts function (distance with
>>> mode=2) today. The problem arises when I was trying to find the hydrogen
>>> bonds between a ligand and a receptor that had been processed with
>>> reduce (http://kinemage.biochem.duke.edu/software/reduce.php). A
>>> bug/feature of reduce is that when it adds hydrogens, it gives all of
>>> the newly added hydrogens a 0 as the atom index in the pdb file.
>>> So what happens is when you try to find the polar contacts between the
>>> ligand and the receptor, it draws a bond between a ligand atom and the
>>> last hydrogen (which happens to be non-polar) which is 12 A away. I'm
>>> guessing it is because pymol is using the atom index from the pdb.
>>> One possible alternative would be to index based on the set of the atom
>>> id, atom name, residue name, chain id, and residue ID, but I don't know
>>> how feasible that is.
>>> 
>>> The work around that I have found is to pass the receptor through babel
>>> after processing with reduce. babel prot.pdb prot2.pdb , which
>>> re-indexes the atom ids.
>>> 
>>> Matt Baumgartner


-- 
Thomas Holder
PyMOL Developer
Schrödinger, Inc.


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