Calculating twisting angle per unit of length

Dear Gmx users,

I would like to ask about an analysis tool that can calculate the twisting angle of fiber structure during the simulation? If you have any suggestion, it is very helpful.

-Mijiddorj

Hi,
Do you refer to DNA / RNA fiber?
Then both Curve+ and 3wDNA can provide twist angle.
Best regards
Alessandra

Dear alevilla, is there any way to calculate the twisting angle of the DNA structure during the simulation? according to my knowledge, the Curve+ website is not accessible anymore, and 3wDNA only asks to upload a PDB file. Is there any way to upload the trajectory and calculate the twisting angle of the DNA structure over the simulation