Dear All,

I have a pdb file composed by several chains where the b-factor column was replaced by a physical property of the proteins. I am now trying to color according to b-factor and to obtain a better representation of the properties described. i.e. I am interested in calculating the log of the b-factor and place that value in the b-factor column.

I tried to export this column form the pdb, process it and then import it back, but due to the presence of different chains the b-factors got messed up.

Would it be possible to do this kind of math  operation directly in Pymol?