Hi Keitaro,

You can try to create a copy from the piece containing the sheet,
colour it differently, and change the coordinates slightly. It's a bit
tricky maybe, especially if you've got quite a bit of curvature.

Hope it helps,

Tsjerk

On Wed, Mar 9, 211 at 3:22 PM, Keitaro Yamashita
<yamash...@castor.sci.hokudai.ac.jp> wrote:
> Hi,
>
> Yes, there're definitely a few (?) exceptional cases.
> But maybe people don't use this feature in such case.
>
> Anyway, this feature is not included in current PyMOL, right?
> Then, is it hard to implement this feature (many changes in code required)?
>
> Keitaro
>
> 2011/3/8 gilleain torrance <gilleain.torra...@gmail.com>:
>> Hi,
>>
>> Although most of the time the strands in a sheet have clear 'sides',
>> this won't always be true. Keitaro already mentioned the possibility
>> of twisted strands, but you can also get two sheets that share the
>> 'same' long strand - well, depending on the SSE assignment algorithm,
>> I suppose.
>>
>> Jellyrolls (http://www.cathdb.info/cathnode/2.60.120) are an example
>> of this, I seem to remember, as they have long strands that cross from
>> one sheet to another. As the sheets are in a sandwich, the strand will
>> change side halfway through.
>>
>> This coloring scheme still sounds like it would be useful, but there
>> might be some odd visual effects, or an algorithm to take care of
>> corner cases.
>>
>> gilleain
>>
>> On Tue, Mar 8, 2011 at 10:12 AM, Hongbo Zhu
>> <hongbo....@biotec.tu-dresden.de> wrote:
>>> I like the idea about coloring tim-barrels.
>>>
>>> At the moment the secondary structures can be selected in PyMOL using
>>> selector "ss". I wonder whether it makes sense to label each strand with
>>> an index so we can select each strand individually, e.g.
>>>
>>> select ss s5 # select the 5th strand from the N-term
>>>
>>> and then one can flip the colors of the two "sides" of the strand in
>>> case it is not colored properly according to the user.
>>>
>>> hongbo
>>>
>>> On 03/08/2011 10:16 AM, Keitaro Yamashita wrote:
>>>> Dear Hongbo,
>>>>
>>>>>> For example, user can put something like light source and "front" is
>>>>>> defined as the side light hits.
>>>>>> (though it would be undefined If sheet plane is placed parallel to the 
>>>>>> ray..)
>>>>> and even the same strand can have half of it facing the light source and
>>>>> the other half turned opposite to the source.
>>>>
>>>> I think this definition is useful when color e.g. beta-barrel, but
>>>> definitely includes ambiguity.
>>>> Then, how about defining front side as the C-beta direction of
>>>> starting residue of sheet?
>>>>
>>>>
>>>> Cheers,
>>>>
>>>> Keitaro
>>>>
>>>> 2011年3月8日火曜日 Hongbo Zhu hongbo....@biotec.tu-dresden.de:
>>>>> Hi, Keitaro,
>>>>>
>>>>> On 03/08/2011 03:11 AM, Keitaro Yamashita wrote:
>>>>>> Dear Hongbo,
>>>>>>
>>>>>> For example, user can put something like light source and "front" is
>>>>>> defined as the side light hits.
>>>>>> (though it would be undefined If sheet plane is placed parallel to the 
>>>>>> ray..)
>>>>> and even the same strand can have half of it facing the light source and
>>>>> the other half turned opposite to the source.
>>>>>>
>>>>>> But I think any definition is ok if front and back could be alternated
>>>>>> easily by user operation.
>>>>> sounds like an interesting operation, though.
>>>>>>
>>>>>>
>>>>>> Cheers,
>>>>>>
>>>>>> Keitaro
>>>>>>
>>>>>> 2011/3/8 Hongbo Zhu<hongbo....@biotec.tu-dresden.de>:
>>>>>>> how do you define "front" and "back" sides of sheets in general?
>>>>>>>
>>>>>>
>>>>>> ------------------------------------------------------------------------------
>>>>>> What You Don't Know About Data Connectivity CAN Hurt You
>>>>>> This paper provides an overview of data connectivity, details
>>>>>> its effect on application quality, and explores various alternative
>>>>>> solutions. http://p.sf.net/sfu/progress-d2d
>>>>>> _______________________________________________
>>>>>> PyMOL-users mailing list (PyMOL-users@lists.sourceforge.net)
>>>>>> Info Page: https://lists.sourceforge.net/lists/listinfo/pymol-users
>>>>>> Archives: http://www.mail-archive.com/pymol-users@lists.sourceforge.net
>>>>>
>>>>> --
>>>>> Hongbo ZHU
>>>>> Postdoctoral Researcher
>>>>> Structural Bioinformatics
>>>>>
>>>>> Technische Universität Dresden
>>>>> Biotechnology Center
>>>>> Tatzberg 47/49
>>>>> 01307 Dresden, Germany
>>>>>
>>>>> Tel: +49 (0) 351 463-40083
>>>>> Fax: +49 (0) 351 463-40087
>>>>> E-Mail:  hongbo.zhu at biotec
>>>>> Webpage: www.biotec.tu-dresden.de
>>>>>
>>>>> ------------------------------------------------------------------------------
>>>>> What You Don't Know About Data Connectivity CAN Hurt You
>>>>> This paper provides an overview of data connectivity, details
>>>>> its effect on application quality, and explores various alternative
>>>>> solutions. http://p.sf.net/sfu/progress-d2d
>>>>> _______________________________________________
>>>>> PyMOL-users mailing list (PyMOL-users@lists.sourceforge.net)
>>>>> Info Page: https://lists.sourceforge.net/lists/listinfo/pymol-users
>>>>> Archives: http://www.mail-archive.com/pymol-users@lists.sourceforge.net
>>>>>
>>>>
>>>> ------------------------------------------------------------------------------
>>>> What You Don't Know About Data Connectivity CAN Hurt You
>>>> This paper provides an overview of data connectivity, details
>>>> its effect on application quality, and explores various alternative
>>>> solutions. http://p.sf.net/sfu/progress-d2d
>>>> _______________________________________________
>>>> PyMOL-users mailing list (PyMOL-users@lists.sourceforge.net)
>>>> Info Page: https://lists.sourceforge.net/lists/listinfo/pymol-users
>>>> Archives: http://www.mail-archive.com/pymol-users@lists.sourceforge.net
>>>
>>> --
>>> Hongbo ZHU
>>> Postdoctoral Researcher
>>> Structural Bioinformatics
>>>
>>> Technische Universität Dresden
>>> Biotechnology Center
>>> Tatzberg 47/49
>>> 01307 Dresden, Germany
>>>
>>> Tel: +49 (0) 351 463-40083
>>> Fax: +49 (0) 351 463-40087
>>> E-Mail:  hongbo.zhu at biotec
>>> Webpage: www.biotec.tu-dresden.de
>>>
>>> ------------------------------------------------------------------------------
>>> What You Don't Know About Data Connectivity CAN Hurt You
>>> This paper provides an overview of data connectivity, details
>>> its effect on application quality, and explores various alternative
>>> solutions. http://p.sf.net/sfu/progress-d2d
>>> _______________________________________________
>>> PyMOL-users mailing list (PyMOL-users@lists.sourceforge.net)
>>> Info Page: https://lists.sourceforge.net/lists/listinfo/pymol-users
>>> Archives: http://www.mail-archive.com/pymol-users@lists.sourceforge.net
>>
>> ------------------------------------------------------------------------------
>> What You Don't Know About Data Connectivity CAN Hurt You
>> This paper provides an overview of data connectivity, details
>> its effect on application quality, and explores various alternative
>> solutions. http://p.sf.net/sfu/progress-d2d
>> _______________________________________________
>> PyMOL-users mailing list (PyMOL-users@lists.sourceforge.net)
>> Info Page: https://lists.sourceforge.net/lists/listinfo/pymol-users
>> Archives: http://www.mail-archive.com/pymol-users@lists.sourceforge.net
>
> ------------------------------------------------------------------------------
> Colocation vs. Managed Hosting
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-- 
Tsjerk A. Wassenaar, Ph.D.

post-doctoral researcher
Molecular Dynamics Group
* Groningen Institute for Biomolecular Research and Biotechnology
* Zernike Institute for Advanced Materials
University of Groningen
The Netherlands

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