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Hello Jakob--

I'll try to fill in a bit while John is on vacation.

> the system using only the long-range restraints (broken lines) . Is it  
> true that pasd somehow scales the violation energy to agree with the  
> total number of NOEs?

not to my knowledge.

> Does it have anything to do with the concepts of  
> "-noeCompletenessWeight" or "-scatterWeight" in the sa_protocols.tcl  
> script - I don't understand the meaning of these variables.
> Obveously, I would like my calculations to converge using all NOEs,  
> have you had similar problems? I notice that you choose the number of  
> long-range violations as your criteria for convergence rather than the  
> total energy. Is this because there were to many structures with lower  
> total energy being incorrectly folded?

We generally don't take energies too seriously in annealing protocols-
number of violations and RMSD values are used instead.

> 
> Do you have suggestion of what goes wrong in my case? Since I use  
> solid state data I have restraints between carbon atoms. The ambiguity  
> is rather large for my restraint ca. 4-5 degeneracy (as a geometric  
> average) after doing prefiltering. I think this should not be a problem.

Why do you have such large ambiguity? Would it be possible to break
these into separate peak assignments? This would be more consistent with
the approach used in pasd/marvin. 

Anyway, clearly the algorithm needs to be tuned differently for your
filtering protocol. Hopefully, John will have useful suggestions when he
returns.

best regards--
Charles
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