Dear pymol users,

I am trying to align two very similar trimeric molecules. I tried different 
alignment commands including "align", "cealign" and "super", but none of them 
gives satisfying effect. Athough the backbone conformations and orientations of 
two two molecules look very similar, there are obvious displacements between 
them after alignment with these three commands. The rmsd of the two molecules 
for these three methods are 2.250, 4.682, 2.206 and 2.206, respectively. I 
wonder whether there is any better alignment command or there are any 
parameters that can be passed to these three alignment commands to improve the 
effects. Could you help me check this?
The pdb files of these two molecules, the image for the two molecules after 
using "super" command, and the alignment effect in the publication I mentioned 
can be found at the following link.

   
https://drive.google.com/file/d/1ff3XgTexgdul-SezUz75dVoCx2cL5YPL/view?usp=sharing

With many thanks.

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