Dear Chimera users, I trying to create a ribbon model drawing of a DNA structure containting several abrupt chain-reversals in the DNA-backbone. By default the ribbon path is smoothed over five successive residues. This resuls in the ribbon path supressing the chain-reversals by oversmoothing the path. Is there any way to overide the default value of the FIVE succesive residues to a smaller number (e.g. TWO). Regards, Jakob Jakob Toudahl Nielsen Dep. of Chemistry University of Southern Denmark
On Tue, 28 Feb 2006, Jakob Toudahl Nielsen wrote:
I trying to create a ribbon model drawing of a DNA structure containting several abrupt chain-reversals in the DNA-backbone. By default the ribbon path is smoothed over five successive residues. This resuls in the ribbon path supressing the chain-reversals by oversmoothing the path. Is there any way to overide the default value of the FIVE succesive residues to a smaller number (e.g. TWO).
So the short answer is not yet. We had noticed the problem with RNA, where tight turns are more common, and have started working on a solution, but it is not done yet. The smoothing is over 4 residues and can not be easily changed. But we can use different kinds of splines to vary how close the ribbon gets to each residue. And that is the solution we're working on. Greg Couch UCSF Computer Graphics Lab
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Jakob Toudahl Nielsen