[Chimera-users] Accuracy of helical parameters

[Vadim Kotov]

Dear mailing list,

  I have a question regarding command "measure symmetry" in helix mode. 
Is there a way to estimate the accuracy for the obtained helical twist 
and rise? My guess is that the accuracy is related to the pixel size, so 
if I have a map with a pixel size of 1 A, then the standard deviation 
for helical rise could be 0.5 A.

Many thanks!

Vadim Kotov
Postdoctoral fellow, Löw lab
EMBL Hamburg