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<div dir="ltr">Hi,</div>
<div dir="ltr">I am trying to get the backbone RMSD between two structures. However I tried selecting backbone and use matchmaker, it gives me same value with the whole protein. So there must be something wrong. Could you please teach me a command that can
do this? Thank you so much for helping!</div>
<div dir="ltr">Best,</div>
<div dir="ltr">Bixia </div>
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