On Nov 21, 2011, at 3:04 PM, Filip Van Petegem wrote:

> So the question is: how you can state that a particular movement was 
> 'significantly large' compared to the resolution limit?

I can think of a different but related question. How significant is a 
particular movement compared to a measured coordinate error? One way to measure 
the coordinate error in this example is to least-squares superpose the two 
instances of the domain in question and calculate the rmsd.

This makes the calculation of significance independent of the resolution of the 
data set.

James


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