Dear ZHANG Cheng,

Have you read these sections?
https://salilab.org/modeller/manual/node322.html

I believe the Model uses the Biso to write a restraint energy values. Thats what I always see from my built models. 
https://salilab.org/modeller/manual/node259.html#CMD:Selection.energy

It looks like R factor is considered from CIF file too.

Are you talking about partial occupancy or full occupancy with Xray structural file? 
occupancy and B-factors are related. Full occupancy the great the B-factor. is this the question you are asking here?

Also, have you tried to run occupancy of 0  on the PDB template versus occupancy of 1 on the PDB template and see if you get the same model?

This seem like an interesting question to look up.

Sincerely,David



On May 15, 2021, at 1:25 AM, ZHANG Cheng <272699575@qq.com> wrote:

Dear MODELLER,

The occupancy value is the 57th-60th columns in the PDB file. Is this considered by MODELLER? For example, will a value of "0.00" or "1.00" have different effect (e.g. weights) for the modelling?

I ask this because the Rosetta will ignore the lines with occupancy values of 0. I wonder if MODELLER does the same.

Thank you!

Yours sincerely
Cheng
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