[3dem] density threshold calculator

Joanna Kasprzak jkasp at amu.edu.pl
Fri May 20 01:17:18 PDT 2011


Thank you all for usefull advices!!
best,
Joanna

W dniu 18.05.2011 17:57, Michael Radermacher pisze:
>
> Just a remark, when using a program that determines the threshold 
> given a specific volume, one must not forget that, depending on 
> resolution, the true molecule envelope may enclose a larger volume 
> than defined by the molecular mass. A smaller volume may also be 
> possible, but I have never observed this.
>
> Michael
>
>
>
> Quoting Carlos Oscar Sánchez Sorzano <coss at cnb.csic.es>:
>
>> Dear Joanna,
>>
>> you may find useful the program xmipp_volume_segment
>> (http://xmipp.cnb.csic.es/twiki/bin/view/Xmipp/Segment). If you need to
>> incorporate it into your own program, the source code is accessible.
>>
>> Kind regards, Carlos Oscar
>>
>> On 17/05/2011 16:57, Joanna Kasprzak wrote:
>>> Hi,
>>>
>>> Could you please tell me is is possible to calculate a density 
>>> threshold
>>> value
>>> for a particular complex volume?
>>>
>>> Eg. Complex A has a volume of 120 000 A3 and I want to know a density
>>> threshold value of a density map which will describe me a shape
>>> corresponding to
>>> this volume?
>>>
>>> Ideally I would like to find a method/algorithm easy to
>>> implement/incorporate with my computer program?
>>>
>>> Looking forward to hearing from you. Thanks for any help in advance!
>>>
>>> best regads,
>>>
>>> Joanna
>>> _______________________________________________
>>> 3dem mailing list
>>> 3dem at ncmir.ucsd.edu
>>> https://mail.ncmir.ucsd.edu/mailman/listinfo/3dem
>>>
>>
>> -- 
>> ------------------------------------------------------------------------
>> Carlos Oscar Sánchez Sorzano                  e-mail:   coss at cnb.csic.es
>> Biocomputing unit                             http://biocomp.cnb.csic.es
>> National Center of Biotechnology (CSIC)
>> c/Darwin, 3
>> Campus Universidad Autónoma (Cantoblanco)     Tlf: 34-91-585 4510
>> 28049 MADRID (SPAIN)                          Fax: 34-91-585 4506
>> ------------------------------------------------------------------------
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>
>
>



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