[phenixbb] density fit analysis in coot

Paul Emsley paul.emsley at bioch.ox.ac.uk
Mon Jun 22 12:03:54 PDT 2009

Raja Dey wrote:
> Dear Friends,
>                         Can anyone tell what the number popping up against every bar of the density fit analysis histogram in COOT is? Is it a correlation co-eff between Fo and Fc or something else? I am interested to know how is this parameter calculated.

Is is the average electron density at the atom centres of the atoms in 
the residue.

> Is it possible to build a model in COOT if only the electron density map and sequence is given? 

If it is traceable, yes.

> Although I know there are some programs to create an initial model. I am wondering whether COOT can do that.

With your input, yes:  Baton-building.

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