Hi Mintu You can use Chimera to calculate rotation angel.
http://www.cgl.ucsf.edu/chimera/videodoc/AlignDomains/ Veerendra On 21/4/15 3:39 PM, "Mintu Chandra" <mi...@iiserb.ac.in> wrote: >Dear All, >I am working with a protein containing tandem domains, connected with >3-4 residue linker. I want to calculate the relative >motion/orientation of one domain with respect to the hinge region as >well as with respect to the other domain. Both the domains have very >less seq. identity (<20%). Please suggest some web server to calculate >the same. > >Thanks, > >Mintu Note: This message may contain confidential information. If this Email/Fax has been sent to you by mistake, please notify the sender and delete it immediately. Thank you.