hi,
how do I calculate the rotation angle of a certain helix  in structures with different ATP analogues?
and how if it is a domain ?
 
Best wishes
Xinghua Qin

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Xinghua Qin
State Key Laboratory of Plant Physiology and biochemistry 
College of Biological Sciences
China Agricultural University
No.2, Yuan Ming Yuan West Road
Haidian District, Beijing, China 100193
Tel: +86-10-62732672
E-mail:
 xinghuaqin@126.com