[Chimera-users] rigid body rotation of subunit

[Dhiraj Srivastava]

Hi
   I have the structure of two homologous protein. These proteins are
dimeric. when I am superimposing chain A of one protein on to the chain A of
other, it looks like chain B of one protein is related to chain B of other
protein by rigid body rotation. How can I calculate the angle of rotation in
chimera? Is there any way, I can draw a vector along beta sheet?

Thank you.
Dhiraj
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