Dear Gromacs Users! By that moments I've completed 2 sets of simulation in high temperature
1- With applied posres on the backbone atoms ( fc= 200 ). The result was- that the posres prevented motion of the helixes as the rigid bodies so I've not noticed any conformation sampling. Question : Could I observe some conformation sampling on that trajectory by means of some external tricks ? E.g extracting of the eigenvectors via PCA? 2 With applied network of disres applied on backbone atoms of the helix elements of my protein within Rc=1nm. As the result of that simulation I've observed distortion of my protein wich resulted in some kind of shrinking of the helix elements. Question : How I could specify that disres more correctly ? If I've observed some kind of shrinking of my protein does it means that Rc was chosen incorectly or should I define disres in anothe manner ? ( I'have not quite understand what exatly is the R_fract and in what situation it could be useful ). James
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